The "problem" with the Webley & Scott 728's--per current "fashion"--is that they all had 25" barrels. I think the late Michael McIntosh might shoulder a good share of the blame for recommending longer barrels on 28's. But then the current trend among Sporting Clays shooters is longer barrels on everything, 30's quite often regarded as being short.
Bill, I expect you'll find that your 28ga will perform quite well with AA's. Something I noticed with my Parker Repro 28: you may want to avoid the "Sporting Clays" AA's, with souped-up velocity. I grabbed a box by mistake and found that they deliver a good bit more recoil in a 5 1/2# gun. Standard skeet loads are fine.
