MX2 CG "Mods"

In retrospect, after some insightful discussion on RCGods about this issue, I think one of the posters was correct that the battery goes forward under the cowl. The 3300 mAh fits in their nicely without any modification (though having the mid-post cut out makes getting it in their easier). The CG is very very skittish; if I merely flex my fingertip it flies off in one direction or the other, no subtlety.  Here are pics of the final result.

The "unmodified" electronics bay of the MX2 (I did cut out a post).

The 3300 mAh pushed as far forward as it will go. Its sitting right up against the ESC. Should the ESC burn, this baby is gonna burst into sunlight...  You can see the post I had cut out before. Serendipitous as it makes getting the big battery in and out easier. The battery fits quite tight, it isn't going anywhere.

I had to cutout the base of the canopy (overhead the battery) to accommodate the battery. The battery lifts as it passes over the wing spar just enough it lifted the canopy.

I balance the prop (it needed fairly large pieces electrical tape on two blades, or I could have chiseled a sizable chunk out of one blade), but even with the surely slightly out of balance nose cone modification the motor is smooth. Still can't get the cowl off...