360 Swap for the 65 Dart

UPDATE
I called the B&M Tech line. Sounds like a crazy answer but here's what they told me.

Knock the weights OFF of my brand new torque converter...
I confirmed twice with him what he was telling me.
"Just knock 'em off, you don't need them with the B&M flex plate"

Has ANYONE done this, heard of this?

If you ordered a torque converter for a 360 specific application, yes. If you ordered the half moon B & M flex plate AND A 360 SPECIFIC torque converter(read : it has weights on it),remove the weights. I had a 360 in my Scamp,with a weighted matching aftermarket converter. Went to a Magnum(the weights are on the flex plate ,like your B & M 10239 flex plate).I knocked the 360 LA specific weights off the torque converter,to make it a neutral balanced converter.