I agree. Soft tips like the Blue Diamond and Elkmasters only compress/mushroom so far; after that, they are a very consistent tip.
I'm an Elkie fan myself. What I like to do after installing a new Elkmaster, is to play some "slam ball" with it for a couple three hours. Practice your power stroke, and really send 'em balls home with a "thwack!" Or, make believe you're John Brumback (hi John!

) and practice your "Kentucky whistler" banks -- try to take the back of the pockets out with a puff of smoke.
After a couple three hours of that treatment, the Elkie is really compressed and mushroomed, so, using your superior tip maintenance skills (hint, hint, for those layered tip guys that've forgotten how to maintain a tip), reshape that tip back into shape. After that, the tip's stable and you *might* have to touch it up after a couple months.
I'm not a layered tip fan, but one layered tip I *really* like, are the Tiger Emerald tips. These are a medium-soft tip, green in color, but extremely consistent -- to me, they feel like an Elkie but have all the benefits of a layered tip.
Hope this helps,
-Sean