I have and like the Whiteside machine ultimate trim bit. Until recently it has been great.The past 2 times I had it in my table I have been left with violent events. No injuries. In both cases the workpiece was slowly moved into the bit and immediately kicked off of it, leaving severe tear out and a rattled operator. Any ideas on the cause. I am slowly feeding the work piece edge grain first into the bit. the Work piece is walnut and the cut is 3/4 inch tall by about an 1/8". Im wondering if maybe the bit is bent slightly I will check this after work. Has anyone had these issues?