Please excuse what might be thought to be a snippy response, but let them work. Don't waste their time asking questions. Pelizzoli and Marnati certainly know more than most of us on this forum will ever know regarding tubing and geometry. By asking questions you will simply piss them off. When KonAaron Snake got his Marnati, he left Daniele work and will readily state that he got more than he ever expected and that the frame size was different that what he had "thought" he needed. People who have real experience dealing with the top pros learn that you can't get by on talk, you need substance. Every question that you ask simply cuts into his building time...