I've just purchased a pair of MMG with modified crossovers from Agon.
They should arrive before my next weekend.

The tweaked Crossovers use Jantzen Crosscaps and 14awg inductors.
I do not have experience with Jantzen products, but from what I've read they seem to perform as good as higher priced alternatives. I don't want to start anything again, but I just hope they'll arive safely and will change my mind about Planar speakers...

Have Fun,
JRA