For me, the lanes dictate where I throw. Seems like every day they change...BIG Time ! It takes me a few shots to figure them out, but my best advice, unless you are moving to leagues where they rotate, stick with what works for you. Try a new stance, delivery, more hand, but only to see IF one of those things will fit into YOUR game. I'll never make Pros, but I think you have to be happy with your game. Sure , find a few new wrinkles, but don't go so far out there thast you are unhappy with your game and hate to go bowling, to me that's not the way to go. my 2 cents worth.
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AZ Guy aka: R & L Bowlers Pro
rlbowlerspro@cox.net