It's really not all that surprising at all to find many higher average league bowlers using exclusively "medium" or "low" end performance balls.  I can get away with using my Columbia Freeze most nights and even it is too strong by the end of a 4 game shift.  Medium performance equipment usually matches up better on the typically light house patterns because they create just the right amount of friction up front to have a consistent backend move.  When a ball creates too much friction up front, it will not store as much energy on the backends.  Then sometimes with these heavy oil balls, you will be forced to push it through the heads, giving you a complete under-reaction.  That gets old... 

Actually, my Columbia Freeze is the strongest ball in the bag.  To give you an idea of what else is in the bag, I have a Burst and Midnight Vibe as well.  

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My HP ball of choice has been the Wicked Siege. Because of how clean it is through the heads, and how forgiving it is with surface adjustments.

 

Besides that everything else falls in the mid performance range or less because I can get in three good games on a THS without making drastic moves. Even in tournaments the aggressive stuff never gets out of the bag. Usually it is the lower rev players I see that really get a lot of use out of the more aggressive equipment.

i've only been using my natural and ogre urethane last 1/2 of the year..our city record this yr,889 was thrown with a burgandy hammer.

Depending on the time of year, I've had to throw different equipment in league. During the middle of the winter, when there seemed to be more friction front to back in general, I spent a lot of time throwing my Tropical Heat, and on occasion even had to throw my Natural. As the weather warmed, the shot has been adjusted to put down a higher volume of oil, and I've been using my Cell and Anarchy to great success (and I even got to throw my Nano I just punched up all three games in league Thursday!), and I haven't been able to get anything weaker to turn the corner unless I get them waaay out to the ditch, but the pattern is a little too long for my release from that far out and I can't get the right angle to carry from that spot.

Good topic here.

 

I use a weakly drilled Virtual Gravity (Pin above fingers - about 5 inches from my PAP) then almost without fail can switch to a Twisted Fury (Pin above, 4.5 inches) after only one game and almost immediately it will cover more boards - a sure sign the VG has started to burn up early. 

 

I see a lot of slower speed players throwing unpolished solid cover bowling balls in the 16-17 MPH range and going over the second arrow on a THS to do it.  It is a pretty good recipe for leaving 10 pins.

I used a Slingshot for 10 weeks of this season. Just one ball.

The three strongest balls in my bag are my Theory, a rico-drilled VG, and my Project-X.

 

I did get to throw my Theory for a 300 game during the middle of the season when they suddenly went to medium heavy oil, but other than that, I generally use med-lite oil balls for almost all my league shots. I bowl in four different leagues. All different levels of oil volume.

 

My normal arsenal is a Supersonic, an Ultra-Sonic, and a Riot or Sonic-X, depending on the house. So yeah, I have  quite a few Hp balls that only see action when I go to tournaments.