I had seen that site before but was not in the market at that time for seals. I am one of the ones with a wonderful seal eating machine!!
..... although I changed the clutch side cover 24000kms ago and it seems to be only a drop or so after sitting for awhile which now seems normal. Before the side cover change I went through 4 water pump kits all under warranty, the 5th kit is when we changed the cover and another shaft and seal. I was long past warranty but BMW covered it under their goodwill program.
I'll pick up a set of these seals for my travell spares, Thanks