I have one of the later IAC manufactured '87s. It has function very well for me, right out of the box with no tuning required. It is extremely accurate for clay birds and I have never been that good of a bird shooter. It functions well with Winchester AA factory loads, apparently other loads/hulls don't work as well. The last empty does not clear the action and you would need to sweep it off in competition, again, seems to be typical of the clones. I have not used mine in competition yet, but I will someday. The ones I have seen on the firing line, even when functioning well, are certainly not a speed machine. Even with good functioning ones, they do seem to malfunction at least once during a day of competition, I don't know if those shooters had IAC or Chiappas nor if they had any tuning/modifications done. You do need to give a good solid stroke to the lever, a half hearted lever stroke will not get the job done. Mine does not have the modification done but by learning the correct position of the elevator, I can drop one into the magazine well and one into the chamber and it seems to work pretty good that way. Basically the Coyote Cap mod does the same thing from my understanding. IMHO, a good double barrel shotgun will be faster in competition, BUT, the '87 gets all sorts of style points!!!