Do you know what model its off? I had a quick look and they all seem to be 5 or 6 bolt fixings. The H.E. disc is good but it would;d be good to find a full floating disc to replace it because they seem to warp quite easily.
Thats reassuring that you've all had good experience with them. I had one and it warped in a few months, so was looking for a better replacement on the same spacer. Maybe its just bad luck then.