Where the cutter has a chipped leading edge on the long flats, a quick gash with a diamond file works wonders.
Might look a bit daggy but they work.
The pointy bits on roughing cutters can be quite weak, so carefully controlled feed rate approaching a cut will make them last longer.
On a machine that is not too stiff this is more important.
Re cutting chips is not good. Well flushed or plenty of air is the trick there.
[nomedia="http://www.youtube.com/watch?v=lzCeAsDMCR8"]YouTube - SNC00374.mp4[/nomedia]
Super X3. 3600rpm. Sheridan 6"x24" Lathe + more. Three ways to fix things: The right way, the other way, and maybe your way, which is possibly a faster wrong way.