I do not own the ball personally but one of my students does. Once the spring league started, he only carried about a 158 average. Seven weeks down the road he is carrying a 176 average. Now before you break in and say that there is no way his average jumped that fast, this league is split into halves. summer and fall, winter and spring. Each period they re establish average and it started sometime at the beginning of december when winter was about to start. But anyways, he has not shot under 600 in 6 weeks. and not under 635 in the last 4. THAT IS NEARLY 100-200 OVER HIS SERIES EACH TIME!!! This is just a typical house shot though about 39-42ft long. He throws straight down and in with a low rev rate and about 13-14.5 mph. NOW THE SPECS.

it is layed out 4" from the PAP and 2" from the VAL and the mass bias is bout 1" from the VAL. It is a 15lb ball.

His game has improved drastically. I really believe this ball with help someone out who has a low to medium rev rate
--------------------
hillbilly boom

Drilled it 5 1/2 from axis and MB 1 1/2 inch right of thumb. I wanted to use this when the pattern started to breakdown a bit and also when the 715A was too strong but still needed the same shape. It does just that, I also see that the ball is much cleaner than the 715A. So far every ball that Track has come out with this season has done exactly what it says it gonna do. What else can you ask for from a ball company.

Just a pot game but WOW!!! This is a very good ball. I drilled mine pin under ring and 45 degrees no whole was needed.  I shot 249 300 300 my own mouth is still wide open
I have shoot Three befor but never back to back.

Ball is OOB condition bowled  after a hight school tournamnet dry in the heads with a good amount of carrydown guys made me get off that pair but before I got off I threw 4 more in a row. .
--------------------
Mr Wham

The 505A may be one of the best THS balls I have ever had my hands on. It has such a violent backend reactions and its one of those balls that you can just get in and wheel when needed. I have 2 505A'2 drilled. One is Rico, and the other is pin below the fingers. Rico layout needed a hole but the other one didnt.

   When the lanes are fresh and the backends are clean, the Rico 505A performs like no other! The other one is just a little to strong on the backened for alot of conditions. It works well if you have some carry down, but on fresh, (NO WAY)... The strength of these balls can be overlooked thinking that the numbers are lower, but both my 505A's are close in strength to my 715A. If the condition isnt there to match it then you will beat yourself to death and leave stuff you cant imagine. Overall these balls are flipping AMAZING, bottom line. There are two balls that have been amazing in my hands in the past year or two, and that is the 505A and the 920A. For the price also, you wont beat it anywhere! Two words........ "BUY IT" John

I just put four new balls in my bag, the 505a was the first ball that I used on league night. My first game using what I call the " Christmas Ball " I shot 241 playing down and in on fresh oil. This ball cleared the heads with ease and made a hard move at aprox 45-50 feet. I have an average ball speed of 16.5 and this ball was drilled 4x3 with the pin under and just outside my ring finger. As my second game started lanes started to transition and this ball really came to life.

I did not score very well my second game because I needed to work on my thumb hole a bit, I am using Grip-Loc interchangeable oval thumb grips and the bevel was a little to sharp. With that said, I was able to get the ball off my hand the rest of the evening and was very pleased with what I saw.

Second game was able to move in and swing this ball a bit, ended with only 187. The last game when the lanes really burned up, I tried to chase it inside a really swing it with not much success ball hooks alot in the dry. With a few frames to go in the third game, I moved way outside and played up first arrow HELLO, I should have been out there after the first game. This ball was amazing outside and really crunched the pocket.

I was really impressed with this ball the first time out, it was great for me in fresh oil, hooked a ton off the friction and was able to play multiple lines with it. I finished my set with only 591, but don't let that score fool you one bit. This is a great ball for the price and look forward to many great games like my first game with it.
--------------------
James A Fitzpatrick / Coach Jim
USBC Bronze certified Instructor.

This is my second review of this ball, and all I can say is WOW !!!!!!

I recently went to state tournament with the following balls
505A - Mission - Cell pearl and an old Angular one.

I was thinking on my drive to the tournament, start with the weaker stuff and see what kind of look you get. So the 505A was the first ball out of the bag and the only ball out of the bag for the weekend.

I shot singles and doubles back to back,went 776,695 to be tied for first in singles and my partner really struggled in doubles, so nothing to speak of there.

Came back Sunday morning for team event and went only 626 for a total of 2097 for all events. I will most likely get my entry money back and be able to put some cash in my pocket.

ALL I CAN SAY IS BUY THIS BALL......IT IS THAT GOOD.
--------------------
James A Fitzpatrick / Coach Jim
USBC Bronze certified Instructor.

The Kinetic line was very successful for me, and the Kinetic Pearl has been my benchmark ball.  Although, I was having some problems in the first game due to the backends being to clean.  The Kinetic being pearl was a bit over/under until the mids broke and the oil carried down.  I bought the 505A and took the cover stock to 500 with a touch of rough buff over.  Being right handed, I had it drilled with the pin over the middle finger for length.  The weak drill, and dull/strong cover allowed for more roll in the mids, with enough length to get to the backends with a smooth breakpoint.  Along with my 715C drilled RICO, this three ball arsenal is great.  I thought the number series was dumb, but the performance has made me a continued believer.  My wife has the 715A and is also impressed with the reaction to compliment her Kinetic Pearl as well.