Fitted mine today, took about 40 minutes - no issues whatsoever. Used copper grease and a trolley jack to press them in slowly, loctite to the bolts and then re-torqued them as posted earlier.
Very pleased to say that there is absolutely no increase in vibration or noise apart from the usual D5 trundle.
A short trip after fitting revealed no obvious improvements as yet although I've not had the opportunity to take the car on a good speedy run . Just very happy that they've not turned my D5 into a noisy agricultural lump....oh wait
Thanks again Lee !!