Lou:
After installing a new Elkmaster, I play "slam-ball" for a couple days with that cue. I only use the cue for slam-ball -- I do not play matches with it. And I do not trim the mushroom "as it happens," either. I keep it as-is, and continue to play slam-ball with it, as it deforms. After a couple days of slam-ball, the tip has severely mushroomed and deformed, but the fact that I didn't trim the mushrooming "as it happened" actually helps the tip to compress fully and settle/situate into its final state.
Then, I de-mushroom it. I use the Porper Big Shaver for the de-mushrooming task, and it works quick and great. A good burnish, and the Elkmaster is stable. It may mushroom slightly some more, but only slightly, and not something that a quick hit with an emery board (for ladies' nails) won't handle.
To be honest, I think a lot of folks have lost their tip maintenance chops with these layered tips and all the hoopla with this "diva tip" du-jour. They're spoiled. If a tip does mushroom, it's like, "oh my god -- this is terrible; what do I do? I need to find a cue repairman, pronto!" And, although undesirable (I certainly don't like mushroomed tips), tell me exactly how a mushroomed tip is supposed to interfere with the shot? Is it distracting to see the tip overhang the ferrule when you're cueing up to the cue ball? Sure. Does it stop you from aiming? No. Does it stop you from putting spin on the ball? No. Does it do something negative to the hit? Unless you miscue, no. I play off the wall a lot (especially when I travel out to Colorado during the holiday season to visit my folks out there, and I don't bring my cues because it's a pain to travel with them). I can play with the most warped cue in the house, as long as it has a decent tip on it; I just adapt to it by rotating the cue where the warp is out of my way. In many cases, "decent tip" means the unavoidable circumstance where all the tips on all the cues in the house are mushroomed, but "this one" happens to be shaped correctly.
I don't say these things to you personally, Lou. I just took the opportunity to insert some thoughts to all this "designer tips" reliance that I see, in the hopes it might ring true with some folks.
Anyway, I hope this is helpful,
-Sean