Any you guys know what the best choke for this load is? I have heard about not using ported chokes with the flite control and all, but not sure what constriction is best. I shoot an 870 with a 3" shell. All I have hunted with since 2007 is the federal heavyweight 5's and I killed a mess of gobblers with them. I ran my factory full (flush) choke, because a gun guy at a show recommended an OPEN choke due to the FC wad. That being said, I would like to have the numbers of the 7's. What do yall think?