John - I think you're right about the 5 degree angle idea. For whatever reason, my overhead casts don't get near the distance that the side-arm casts do. It's a little easier for me to watch the back cast when I'm side-arming it, also, which may have some bearing on getting the line straightened, as you mention.
Sean - I should have said "casting" 95', not "shooting" 95', as you point out. Yeah, I wish I could shoot 95'... I'd be a casting instructor, in that case. BTW, I think you're right, also; I can get better range of motion on the side-arm cast, now that I think of it.