Incline involves ALOT of front delts along with chest. And in my experience, its' made even worse because of the fact that about 75 percent of incline benches arent angled on a decline enough, and are too high, thus putting EVEN MORE stress on your front delts.
My personal best recommendation, because it has worked for me, is to see if your gym has just a regular bench that can be moved around in the gym that is adjustable so that you can set how much of an incline or decline you want yourself. And then take that and angle it just a little above flat. I'd give you a recommendation in degrees, but my rememberance of geometry is failing me right now.
I know that this works so much better for me personally, it allows the stress to be put on my upper chest where it belongs as opposed to my front delts.