At that weight and percentage all-mountain, you'd probably be better off on something a little stiffer... Watch Lifes would work well for you. If you plan on skiing any powder, the Anthems may be a better choice for a one-ski quiver. I have a pair of Surfaces sitting next to me, can't wait to try them! It snowed here in Southern California today; the season's not far away...
i own 171 watch lifes and they arent stiff, they are wayyyy poppy and light, and super playfull. i weigh 145ish and on big jumps like over 50 they are fine for landings.
ive skiied invaders too and they seem stiffer till you try butters.
im probably getting anthems this year though just cause they seem awesome.