Can anyone please give me advise on the best type of grease to apply to the rollers? I am fitting complete new rollers, brackets, nuts, bolts, everything,I was wondering about using a copper based anti-seize type as used on car brakes, I have noted on site that waterproof grease goes hard, also I will add more stainless washers to roller pin assembly as there is no washer to prevent the roller being jammed against the inside of the roller bracket preventing it from turning! JBD