Putting the MB in the track can do goofy things to the flare. If you really know what you're doing, you might get away with it but for the most part, it's not a good idea.
That's with the new super-strong asyms with mid-diffs >0.015" or so. The older ones, like the Freak line from Track and the pre-Vanguard balls from Morich, with lower mid-diffs, it was safe to do and you could get a very controlled reaction like that. Many of Ebonite's and Hammer's cores are like that, they have relatively small MB strengths (some in the 0.005 and lower range).
SH
