I always get a kick out of the pro and con porting threads. I have a Browning O/U I use for skeet. Once a long time ago I was at a shoot in Tucson and one of the vendors had a EDM porting service, He was well known for his porting and gunsmithing. I decieded to try porting between rounds and a break for lunch. I told him I wanted the bottom barrel ported. His response was that I need both barrels ported. My response was, if it helps, I just need control for my first shot, I could care less where the barrel went after the second shot as I was done shooting for that station. He was a little miffed I guess because he could not SELL me 2 barrels worth of porting.. At any rate, he did the porting for me, I went back to shooting after lunch break and could see NO change in lift or recoil,,, NONE.. I wish I could have, I wish it DID make a difference. Well it did make a difference, my first shot was louder than my second, that was it,,, all she wrote.. I have read many threads where people claim great differences after they port a barrel,, personally, I think it is more mind over fact. Whatever, if you think it works,, great, ,go for it. If there IS a measurable difference in muzzle lift, it is so insignificient as to NOT matter. You are better off saving the money for shells to practice with. I wish that gunsmith had a way to remove the ports I so foolishly bought.