I asked about drills in the generic sense that would help retrain my muslces. But, given that my fit has been reasonably static for a long time and the cranks have introduced a large change, I'm not beyond considering that there might be mechanical considerations that could help. Seat height and fore/aft position seem the most likely possibility.

Not sure how detailed you would like to get, but:

Height: 1950mm
Cycling Inseam: 960mm
Sternum to Floor: 1590mm
Arm (as measured by L.Zinn): 620mm
Comp Cyclist measures
Trunk: 690mm
Forearm: 375mm
Arm: 695mm
Thigh: 650mm
Lower Leg: 615mm
Shoe Size: 51/16US

Current setup with 180mm cranks. Saddle to BB 875mm, Saddle Nose to BB setback 80mm.
New setup with 200mm cranks. Saddle to BB855mm, Saddle Nose to BB setback 80mm.

Yes, that places the saddle ever so slightly further aft on the new setup compared to the pedal spindle when at full extension in line with the seat tube. But, identical when at bottom dead center.

My knee has gone from being approx. 20mm ahead of pedal spindle to approximately even with it. I'll try to get some decent measurements of this in the next day or two.

I'm currently running my cleats full aft and outboard. The new cranks also have 24mm greater Q factor.

Thoughts?