phil-there was a guy i bought a load of off the forum, but when i asked for the techspec sheet, he had to admit that they wernt the proper hilti ones - he did offer me my money back but to be honest they looked the same and acted the same so i didnt bother, but i cant take the risk of getting anymore from him,even if he was a nice guy - i've just orderd a box of rings from leaches as i didnt even think to ask them if they stocked the rubber inserts as i thought hilti had stopped making them.
by the way did you ring sperian yet mate