First let me ask what type of finish you want a gloss or matte?
BTW Lazy why put a Comp on a .45 unless you are using all +P loads to work a comp it has to travel fast and .45 are big fat and slow bullets unless you are using Blk Talons, or Ranger T?
Long Story short...I just got a really good deal on the barrel and it happened to have a comp on it.
At the time I was shooting IPSC and I was in the process of building an "Open Class" gun. The comp surely didn't hurt, so I went with it. It actually did help a little... It allowed me to get my loads comfortable above the "floor" for IPSC "Major Power" when coupled with a little bit heavier recoil spring. Instead of having to hover around 825 FPS with a 200gr LSWC and fretting over the chrono stage, I could load them up to 900+ FPS and be comfortable. With the comp and spring combination was was running, It was still a very soft shooting gun with very little muzzle flip. Also, I was pretty much guaranteed to knock over pepper poppers that might be set a little heavy....(I never hit low or anything like that...:biggrin::biglaugh::shades

.
Now it's become my secondary carry/HD gun, so-to-speak.
The comp was a 3-port unit. I shortened it to the configuration you see here. I liked the barrel so much, and the way the gun runs with it, that I couldn't see going back to a barrel/bushing configuration. Especially considering that Troy did some accuracy/reliability work when he fitted the barrel and the gun is Stone depndable. It will feed VW mini-busses if I can figure out a way to get 'em in the magazine. And it is far more accurate than I am....:notworthy:
I also went back to all "factory weight" springs and got the trigger back up to a nice crisp 6.5 lbs or so, in a nod towards the safey aspect of things.
Bye the way...using 230gr Hydra-shocks for defensive purposes right now and they are a little hot...
VR,
Harold