Boy, this'll divide a crowd down the middle.
I have a couple of trap doubles guns that are ported. The genesis of that was once having the opportunity to shoot two identical guns, one ported, one not, back to back. Not a shell in one gun and then a shell in the other. It was a couple of boxes through one and immediately a couple of boxes through the other. I was like, "Whoa!" It made quite a difference in perceived recoil and especially muzzle jump.
Having said that, if you shot the two guns on different days, I very much doubt it would ever occur to you that there was a difference.
Now that everyone is stirred up, should we talk about lock times?
