Im running a 22-32 in front and an 11-34 cassette in back. Im in the market for a new rear derail and I want to see what you guys thinks the best options are. My old x9 wore out but I want to see if there is anything better out there. I want something strong as hell that shifts well. Looked at SLX and saint but Im not sure what I would get for my XC bike. Could I go medium cage for this setup? All recommendations appreciated.