The shaped Spirit with 5/3/5 walls? It's higher level stuff as far as fabrication, you have to really have your skill set refined to pull it off. If you're going to braze it, Fillet Pro (with it's lower working temp) is the way to go.
Btw, like all the light weight materials, there is a rider weight limit for Spirit.
Last edited by Live Wire; 10-07-10 at 02:01 PM.