Not sure what might have happened, never had this problem before.

I simply changed from 1.75mm to 3mm filament and copied over the orignal profile and simply changed the dimension values accordingly.

NOW, whenever I print a part that has any sort of angle in it, the initial layers get laid down at maybe 5% (or maybe less) of my total feed rate (I was printing at 60mm/s). If I print stuff that is square (like calibration cubes, etc) the speed is what I'd expect.

Is there a setting I should look for that would cause such slowness? I disabled the Cool module, but that had no effect.

ok, so I managed to get rid of the problem - started over with a fresh config.

Wish I could say what fixed it, but I'm not sure. Oh well - my prints are finally looking great and the Prusa has started making "children"!