1: Show them videos of players like Norm Duke, Walter Ray Williams, Parker Bohn, Richard Wolfe, or even Paul Moore, and many others. Plenty of exempt players employ stroker styles, and look at all the titles they've racked up.
2: The pros can generate the higher speeds because of how good their execution is. I've seen plenty of thin guys/girls generate plenty of speed through good technique. That being said, their speed comes naturally, as in, they don't try to throw hard- it just happens. Also, excessive ball speed is just as bad as too slow of ball speed. It's all about matching the speed to your line and revs.
3: Yes, it is true that nearly all, if not all, pros today use 15-16lb equipment. But that ties in with #2: They throw the heavier weights partly to counter-act their ball speed(and even the weight sometimes isn't enough.) And yes, it's obvious that the heavier balls carry better than lighter weights. But from my point of view, a 14lb ball carries just as well as 15 or 16lb equipment.
4: The absolute best thing to do is to lay out a PBA pattern one day for the kids. You can download the patterns off of bowl.com. After a few games of bowling on those shots, the accuracy misconception will be wiped out. I'd put money on it.
5: By the time the pros get into their actual TV matches, the lanes have been broken down a decent bit, forcing them to use a shiny surface. Also,some pros break down the lanes in practice with a sanded ball to create a hook spot to bank off of, a la Norm Duke. And I've seen tons of examples of pros throwing Virtual Gravity's, Cell's, and other similar strong, dull balls. Finding a televised example of one should be relatively easy.
Hope this helps, and best of luck.
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Formerly Chocolate Milk.
