I'm ready to buy my first carry gun, and looking for a little help. I really like the compact(4"), but the guy at Novak's 45 shop says their is a problem with the bushing design. Novak's says to go with the ultra(3.5") the problem dosn't show with this gun. Anyone have any info. on this or a fix, also how does the recoil differ in the two. New to pistols and the board, thanks in advance.