A very good friend of mine has a Champ Operator and it is an excellent shooter.
No FPS and a ramped barrel make it a winner in my book.
It is almost as nicely finished as my TRP Operator and has a little lighter trigger. It is tight, good barrel fit, bright night sights and nice and light at 31 oz unloaded backed by an unconditional lifetime warranty.
Unless kimber switched over to a ramped barrel on their aluminum framed models, it wouldn't even be on my consideration list.