my buddy, has two RXP's, SWEARS by his trailer bunk sliders, says he can slide a 4 stroke off the trailer by hand with one solid pull half and it goes half way onto the stand (which has silicone spray) I think i'm going to try it on one of my bunks and see how it goes because the first foot for me is also a b1tch, even with the dam winch, it moves like 1" at a time.