I love my KMG. Being able to change out from platen to wheels is great. Got one with a platen and small wheel attachment and then reworked 8 and 10" Grizzly wheels to take bearings. Bought some 1 1/2" square stock from the steel yard., polished it up a bit with a " grinder and made my own tool arms. The small wheel is great for those tight spots and things like finger grooves. A variable speed is fantastic. Being able to go from crazy fast to do rough work with a heavy grit to slow for fine work with lots of control is important. Not only is the control great, but, when you are working a hardened and tempered blade you don't heat it up as fast. Going slow is so important I am going to change the pulley on my motor so that my machine has more torge when running real slow. I got my 2hp 3ph TECF motor from Grizzly for a bit over $100 and remote mounted a TECO VFD in an enclosure, then wired a 10k 5 turn pot near the machine for speed control. About $1000 to Rob for the machine w platen, small wheel attachment and 2 small wheels and another $600 and some work to have everything I wanted in a grinder. I liked it so well, I cut my old 2 wheel 48" machine apart and reworked it into a KMG clone. Bought another Grizzly motor and run both off the same VFD.