RHWestar,
It all depends on the rules of the tournament. So for any tournaments get a copy of the rules FIRST. If there is no 10 pin rule, you may still be rerated at the whim of the tournament committee at anytime for any reason. Or you may not be rerated, depending on it the tournament committee doesn't think your improvement is significant enough to demand it. Unless of course you cash then someone might complain thus bringing the rerated on. Best advise...read the rules carefully. Comply to the rules. Then keep your mouth shut about averages and improvements etc.......
Erin