I am 5'10' and I weigh 135lbs. I am gonna get the AR5's but have to choose a size. I had a pair of line mike nick pros 171 but I broke em'. I always felt as I was dragging (last year 5'8' 120lbs) them behind me in the air. I heard that the AR5's are light so should I go with the 176 now or the 170. Thanks much