IMHO

Slower than 7.50 and not a headsup car where every pound counts, MS all day everyday with ZERO concerns. preferably TIG'd.

Safety, MS no broken tubes or joints like CM in an impact. Seen too many CM cars with cracked and broken tubes without crashing.

Mine is an older Jerry Bickel MS chassis (TIG'd)) with 3000+ runs and is as straight and square as the day it was built, also has never had a cracked or broken joint/tube. It's been 8.0's and should be 7.50's this year and I have zero concerns with it.