I had the privilege of going to Jamies shop before Christmas and looking at pits in production the quality is second to none and I have been around his pit and seen them in action I still can't believe the ease they are to use. I have not seen to many offset pits that can go from 225 to 275 in a matter of few minutes like five at the most just by adjusting the exhaust damper.
They also use very little fuel
and the Team of the year in KCBS uses a Geer pit along with several other very very good Q'ers.
And yes you need to have Q skills in order to win but it also does make it easier So until I getter better Q skill I'll just be drooling over them