I play on Sundays with 10 to 20 men, We play by USGA Rules,Tournament format , We have 1 person that has a double sided chipper .I told him if we are playing USGA rules he is not alowed to us that club. He says it i leagle. I dont agree. I say its not leagle.. What is the ruleing on the club??? Double sided chipper....... THANKS FOR YOUR HELP SHAMHER