Adam,
I use a Tormek Grinder & associated jigs. Whilst it is a pretty big up-front expense, I have found a number of things :
- my tools last much longer as I remove less steel with each sharpening,
- my grinds are consistently the same, so my approach to using the tool is the same (no relearning how to best present the tool to the wood), and
- it is fast, so I resharpen often (rather than using a tool when it is too dull).
I've had mine 15+ years and still consider it one of my best turning expenses : in fact, it is the only tool I've not upgraded / replaced.
Rich