Bill Houghton, Sebastopol, CA
If your hands are betraying you, consider the Lee Valley. I haven't handled the 1/2" LV shoulder plane, but I've got the 3/4" model, and the ergonomics are a delight. It's more expensive, but you might find it far more comfortable.

I too have a Record 073, and have yet to figure out how to hold it comfortably. With the work I've been doing, the 3/4" tool is the right size; if I started doing work calling for a larger plane, I'd probably be saving my pennies for the large LV, and the same if I needed a smaller one.

That assumes that the planes currently hiding from you stay in hiding...no need to spend money just to spend it.