Dun,
In our Red Angus herd, the F442 daughters have averaged right around 98 WW Ratio on their calves thus far. I'd have to do a little research amongst the SMxAN data to find out that answer there. This would be compared to some major AI sires including Cherokee, Major League, Vacation, Cheyenne, B571, Vaquero...etc.
Feet? We've not experienced any problems on our F442 progeny....the bulls have all been big, sound footed and the females are good so far as well. I do think that they sit a little lower on their heels than some other sire lines as a rule, but we haven't witnessed any long toes which could easily cause problems in our part of the world.