I use my forstners a lot. They are CMT and Freud. I use them drilling a couple inches into end grain of various hardwoods. I got the sharpening kit from Rocklers.
When I add another two bits, 1-1/2" and 1-3/4", I want them to last as long as possible.
Are your current recommendations Famag, Freud, & CMT?
Thanks,
Brian