I went from riding a 171 Metal FC to a 175 Proteus. Proteus absolutely shreds, very lively, and conquers the steeps. But, I'm only 22, and I noticed that the Proteus is physically much more demanding than the FC. You really need to commit to every turn, but it does reward you for the effort you put in. If you don't want to press super hard into turns, I would actually recommend a Metal FC.