If the suppressor is of a greater diameter than than the barrel/rib, it will possibly take getting used to out on the end of the barrel. I never used a Cutts Compensator choke on a shotgun, but they were fairly fat...called a corncob by some, but awesome skeet score were shot with them.
However even Poly chokes on a non-ribbed barrel make a shotgun shoot low for me. I am not aiming the shotgun, rather looking at the wild bird or clay target, but the sub-conscious obviously takes the end of the barrel into account, at least in my case.