Shifted my weight onto a pedal on the down stroke (right pedal, actually).
Immediately went to neutral.
In my middle chain ring, I've actually got everything adjusted properly. The chain jumped off the chain ring, floated above it (I guess it balanced the part between links on the teeth?) for a few rotations(!), then recoupled to the chain ring again. Didn't do a magic shift (I've had my RDR do a magic downshift when my rear wheel slammed a bump off road), just floated above the chain ring for a second.
I think I'm going to figure out the FDR this weekend. It's still crap in the lowest ring. I've adjusted and indexed it properly in the middle ring; but my lower limit screw... it's a shimano, it has tilt screws that tilt the bottom in and the top out. Anyway, bottom tilt, if I bring it in close enough to not rattle on my biggest gear in my smallest chain ring (low-low), I occasionally drop the chain between the small chain ring and the seat post. It's adjusted so I don't throw the chain into my frame now, but it actually rattles fiercely in my biggest 2 gears ... oddly enough, it's perfectly smooth in all 8 gears on my middle chain ring.
I'm doing something wrong I swear.