I'm not quoting the original message here--I don't seem to have it.
I have these BB sets on a number of my bikes.
I'm fairly certain you don't need to chamfer the BB shell edges to install the Mavic bottom bracket cartridge. (Someone else may want to pitch in with an opinion.) I've done them both ways with good results in all cases. A very nice BB, in my opinion.
I have found it hard to get the lockrings tight enough. The set comes with nylon rings that go between the lockrings and the shell faces. I've always used these but have had the rings work loose and I'm thinking it would probably be better not to use them--again, other opinions would be welcome on this. Metal to metal contact would allow the rings to stick tight with less torque. The nylon pieces compress quite a bit, leading to ring loosening.
What I've done is use a BW--bigger wrench. The official Mavic ones offer very little leverage. I've never used Loctite--but that sounds like a good idea. I just cranked those puppies down really hard--then they would loosen and I would do it over. After two or three times they stay put. I've never had a problem with breaking or damaging the lockrings either--they seem quite strong. But you do need to be careful with the wrenches.
My two cents worth.
Bob Schenker
Oakland, CA