Well, the Champion uses an alpha for the centerfire. I have an alpha and have been very happy with it! It depends on the type of work you do, as I would not say there is a lot of radiant heat compared to some other torches. But I don't know how running the outer fire would help with that. Have you see the videos?
http://www.youtube.com/watch?v=mWp9mFnt9K0 - running on concentrators
There is a special at one of the American distributors..
http://www.artglasshouse.com/pc_prod...55C8D0794CA6C8
Good luck with your search