Gene, if you are bowling as an amatuer forget about what the PBA members are doing. If wont do you any good to watch what they are doing because its basically 2 different tournaments. Even though everything comes from the same prize fund, the amatuers are fighting for 1 spot. Keep your eye on the prize and dont worry about the members.
As far as rules go, there will be non-member meetings on tuesdays. Just pay attention to what you are doing as far as lane courtesy goes and there should be no problems. There is a rhythym to the PBA cross and if it gets interrupted, guys can get a little upset.
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Bowl up a Storm,
Jeff Carter