Well, according to what he has posted in the ATCM section...he has had the tip changed roughly 20 times (he plays a lot), and he likes a very rounded tip shape with little to no sidewall.
I like a rounded tip shape as well, and am no fan of a 'skyscraper' on the end of my cue...but you really need to leave some sort of a sidewall, if for no other reason than you are more likely to put small chips in the ferrule.
That aside...I have played with a very low tip (actually, just had it replaced), and even then, when chalking properly (a simple light swiping action), I have never gotten chalk on the ferrule....even when chalking the edges of the tip.
Just how much do you chalk? Part of the virtues of the Blue Diamond chalk is that it goes on and stays on. I have actually played several games without ever really needing to chalk. I do not make this a regular practice...just wanted to see how long it actually lasted. If chalking is part of your pre-shot routine, then a quick swipe or two should suffice. Anything more than that on every shot is just making a friggin' mess...chalk all over not only your tip, but the CB and the cloth, not to mention your shaft.
As a side note...when you come to a forum, or anywhere else for that matter, and ask a question and receive answers from various members that are pretty much all telling you the same thing...you might want to consider that they actually know what they're talking about, and take it as good advice, even if it wasn't what you wanted to hear. Just because you play well, doesn't mean that you know how to properly maintain your equipment. You're not going to win any friends over here when you insult the very people you apparently had enough respect of to ask this question.
Upon reading further into the ATCM thread you started...you might want to find a new cue repairman, as it seems to me you have had a improper tip install somewhere down the line. I am just not buying that a ferrule starting out at 12.5mm, and ending up at 11.6mm at the tip end of the ferrule, and 12.2mm at the bottom end of the ferrule is due exclusively to chalk wear. And if the shaft is flush to the ferrule, then some one has taken the shaft down as well...at least at the ferrule end of it. A proper ferrule will not have chalk lines in the middle, and a taper (unless you specifically requested it that way).
Lisa
Could it be that the ferrule and shaft is being sanded down when changing tips?
The rest of the story:
http://forums.azbilliards.com/showthread.php?t=192863&highlight=blue+diamond