Hello! Recently did a lit of testing with clears using various caps and springs. The lighter springs WILL stick (reduced when you lube them, but still noticible). This is why browns are used in the 45g/50g group instead of clears.
Lube DOES make a difference, but I recommend "breaking in" your clear stems before you lube them. Fresh clears are a little too tactile. Even with 62g springs you'll experience small sticking without lube.
Personally I feel that older worn clears with lube are better than unlubed new, but some people may desire that stick effect and that super bump.
Springs I vote for are 62, 65, stock black.