ok last weekend I sized the RPA up to 6ga. so far so good. I can wear a 00ga in the standard PA and a curved 6ga as an apadravya. meaning not out the end but piercing to piercing, clean through my cock , its comfortable, feels good and still has weight on my cock that I like. My goal is an RPA in big enough gauge that I dont have to worry about it closing up. like a 2 g or 0g . that way I can just leave the hole open. Then wear the giant 1/2 inch rings in my PA and be able to piss and even shoot cum out the top hole.