Jim M- I wouldn't use an underpressure cylinder on a wood splitter or for a load lift function, but to position a grapple, i wouldn't think it would take the full 3000psi, as long as you don't make a habbit of holding it against the stops ona regular basis. I have blown hoses, but never a cylinder on my FEL or BH. /forums/images/graemlins/blush.gif(normally from a shock load, where the pres relief couldn't let go) Pat