Looking back my Mulfab springs have been in about 3 years now and all is well. No visible droop. I do keep an eye on them. Not sure how relevant the difference in height is on the bench with no load. Several factors might cause it. Until they are loaded up it’s difficult to know for sure.
I got Kevin Vernon to put in a set of 4-leaf rear springs from Peter Mulberry when he fitted my new chassis in early 2012. No sign of uneven sagging yet.
