I'm a 50 year old female just learning to snowboard. Can only handle about 2 hours each time before it kicks my butt. I'm not planning on doing any jumps, boxes, rails, etc. I just want a board to go down the mountain on. I am on green runs and would like to get to blue runs - not interested in diamond or black runs. Just want to easily cruise down the hill with some s curves and linking turns. The guy at the pro shop suggested I get a flat rocker board (not a banana board). But some internet reading suggests that's more for doing jumps, etc. so I am confused. Would a 0 degree rocker board be okay for me for the limited use I need. I usually ski at Snow Summit in California which is mostly groomed runs. I've also read that it can be hard to carve on these boards, which would be what I need to do on blue runs. Any advise?