I owned a SA V-10 comped Ultra Carry (3.5 inch barrel...so can't fit 16 holes in it!!!).
The gun shot fine, but here's my problem with it...and why I sold it (which is RARE):
A) Lead and exhausts shoots up through the compensator. While this is not news to anyone who's shot a compensated pistol, I didn't like the safety issue since it was used for a carry pistol (for a short while...as soon as I could sell it).
B) The 1911 doesn't really kick that bad anyway, why comp it? Unless you are shooting bullseye competition, it's just a needless feature.
C) In my opinion, I didn't get as much velocity (didn't meter it though) from my rounds. The .45ACP is slow enough, so I don't want to cause any more arc in the ballistic path than necessary.
D) Cleaning out the ports can be a real bitch if you shoot a lot of lead.
Nice gun, looks cool. But, in my opinion...just redneck window dressing.