I've started a jazz quartet for a one-off gig. Now I've always been a blues guy; but in the last year I've delved alot into jazz; but the time to prove myself is coming. We're going to play "So What", "Blue Train", and "Moanin". The issue to me is that when I'm improvising solo modes over "So What", it "feels" wrong; I've tended to stay in Dorian but when I switch to another mode, especially if it's major, it sounds plain silly. I've talked the talk but now I need to walk the walk (literally). Any help or tips would be appreciated.