I'm looking to purchase my first FS and need help deciding how much bike I need. Would the XLT be to much suspension travel for mostly rocky XC (northern east coast trails). I like the sturdiness and plushness of the XLT but i dont want to exhaust myself on uphills and smooth XC trails. Would i be better off sacrificing some pedaling efficency for comfort. Also, I'm getting mixed views on how much efficency is lost with the longer travel bike. I'm also open to other brands.