My free handing sucks. Well... grinding the 2nd face to match the first one sucks so I guess I'm only 50% bad
I bought the same Drill Doctor 750 when KBC had a sale ~100$ as I recall. It does a decent enough job on the geometry. I find its not as polished as a new drill but end result cuts reasonably well. The setup & cam action is pretty straightforward, you cant really do much wrong. I thought I'd also use it for is switching back & forth between drill geometry for 'grabby' materials like brass so could just re-dress an existing drill & then revert back to typical steel geometry. I haven't sat down to figure this out 100% but I'm not sure it accomodates this aspect of the geometry. You can alter the point angle from 115-140 but not the ?whats the term - rake? I think is dictated by the cam action. So I do it by hand with a oil stone, no biggy. Its also not super speedy on larger drills & doesn't really lend itself as well to center drills if they are short.
http://www.drilldoctor.com/drill-doctor-750x.html
In my utopian world of infinite hobby funds, I want a tool & cutter grinder. Then you can do the whole enchilada - drills, lathe bits, custom profiles, engraving tools... One day!