The focus is definitely better with the 10FP4

I still have some work to do with centering the picture, vert. and hor. linearity etc. I'll fire up my recently restored Leader LGC-400 for that.
Here's some Perry Mason I picked up on MeTV using an OTA converter box.
I've been using the sharpnest of the station logo in the lower right as a rough quality indication. This set is one of the best in my collection

The audio was lousy, but that's typical of all my vintage split carrier sets when using the AccessHD DTA1010 box.
It's much better with a Blonder Tongue modulator.