Good to hear Paul.
A lot of people have PM'ed me about the B4(sport) short dampers and Eibachs when I took a gamble on them too.
You don't need shortened bump stops BTW.
If you check the BMW parts catalogue for the ZSP lowered sport suspension, it uses the same bumpers
PS - those B4S dampers absolutely will NOT accept oem springs, even M-sport, as they are too long for the front dampers.