I bought a Woodcraft slowspeed grinder via their website and just received it today. When the grinder is turned on, it makes a very loud screeching noise right before it comes up to full speed. Noise only last for around 5 seconds or so, and goes away as soon as wheels are up to speed. I spoke to a technician from Woodcraft and had him listen to the noise over telephone. He says all their current batch of grinders made that noise, and that it shouldn't affect functionality. He says I can return the grinder for refund if I want, or he can send me a replacement, which will most likely make the same noise. I asked whether other people had called to complaint about this; his reply was that a small pecentage (relative to the number sold) called. He also told me they've made minor modifications to these grinders recently, and he speculates noise is caused by the capacitors they're currently using. Apparently, someone from Woodcraft HQ evaluated this issue and decided to continue selling the grinders as is. Has anyone on this forum purchased one of these grinders recently, and experienced the same problem? Did you keep the grinder?