Looking at barrel options for a new pump build and tossing around the possibility of utilizing a Freak back (probaby WWA) coupled with an Apex2 front. Does anybody have any real experience with this setup? I'm not looking to be "ZOMG I'm a Sniper" or anything, but kinda interested in a little extra range and flatter trajectory that a backspin type barrel allows. Several years ago I used a Flatline on an A5 and a 98 and had pretty mixed feelings on the setups. Never tried it with the Freak back though.