it is not an issue of how it will build, it is an issue of quality and strength of the steel. Hopefully you are brazing at the low temperatures that silver is know for since that will preserve the original state of the steel and not cause it to lose any more strength. I have Nova tubes in my inventory and they like any Asian made steel, excluding Japanese alloy are inferior to any U.S. and European steels. They are untreated soft and simply my last and what I mean by last choice is that there is no other option available. Once you build more and understand the differences between the different tubes available you will begin to understand what I am talking about. Most builders do not even understand why some tubes are heat treated. My understanding of the craft and frame building originated from Cecil Behringer a Ph.d metallurgist who did back in the day consulted both Reynolds and Columbus. He was the go to guy who specialized in joining the impossible.