Thanks for the input so far. It is all quite helpful, and it backs up what I've read about the Saw.
Phoenix,
As Splendor made reference to, I don't carry all of those balls with me at all times. For league, I generall bring two strike balls and my plastic ball down to the lanes to start. If the lanes are really acting different than normal, I may make a trip back to the pro shop to swap one out. On average, I would say that I probably use two strike balls per night of league bowling: one for the first game to game and a half before switching to something different for the third. When it comes to league, I can use just about anything I have in the bag, maybe minus the flood ball or scorched lane ball. So, as far as league is concerned, yes, the number of balls I have would be overkill. Tournaments, however, are a totally different animal.
Tournament lane conditions, whether PBA or ABT, demand a lot of a bowler. Sometimes you need early roll and smooth backend; other times, you need long and flippy. Now, could I manufacture such reactions with fewer balls? Of course. Changes in wrist, hand, and finger positions could allow me to use fewer balls. Carrying a large arsenal allows me to create different reactions while staying within my 'A' game. I liken it to golf clubs. I could work my way around the course simply using a driver, 7-iron, wedge, and putter, but by doing so I will have to use some of those clubs in ways in which I am umcomfortable. The key is to make things as simple as you can so as to only have to focus on shotmaking.
In order to manage such an arsenal, I read a ton of reviews before picking up gear, and I do a lot of practicing, surface adjustment, etc once I get it. That way, when the lights come on I have a pretty good idea of exactly what each different ball will give me. If you fail to take those steps, you're going to be in trouble because then you'll be switching balls without really knowing what you're getting.
As was stated by Splendor, if you're a newbie or someone who only bowls recreationally (maybe one league night a week, no tourneys), then you have no need for a lot of equipment; you can simply get by with two or three, at the most. If you want to seriously compete in tournaments, however, more balls can make things a great deal easier.
I hope this explanation helps.
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I've only bowled 300, but I've benched 345
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