I haven't had a problem with the positive clamp tbh, the ones I've had have been plenty strong enough.
Though the negative is always poor in my experience. Had to change it on 3 or 4 of my 306s! Just used the heavy duty one from ECP, does the job fine and isn't really any more hassle to remove.
Though the negative is always poor in my experience. Had to change it on 3 or 4 of my 306s! Just used the heavy duty one from ECP, does the job fine and isn't really any more hassle to remove.