Could be the spring action is a tad quieter when greased not by much tho I'd guess
By the way which way up do these go. SRM site says tighter wind to bottom? This is what I have done.
For the life of me I can't work out how this would make any difference as the spring contracts when pressure is applied; at the weaker rate end first of course but by the same amount overall, so softer action to start with getting progressively stiffer as the spring shortens (which it will do anyway but perhaps more so)
Looks better if they are the put in with the tighter ends at the same end of course. now I'll stop here, (was going to go on to explain how the universe began
)
Having sort of trashed them I must admit to having them on both bikes, one front and back