Don,
I am by no means the expert but I am over this sharp turn hurdle. I will try to explain in my own words:
If the blade it not tight enough you will have that problem. Here we go:
As you approach the corner make sure you keep cutting until you get the corner, stop feeding the piece and let the bladed go up & down without cutting, pull on the piece gently toward you so now the back of the blade is trying to cut the wood with the back of the blade, now you need to start turning the wood and keep the little pressure on the back of the blade, you need to make that wood behave as if it is pivoting about the back of the blade. these blades actually will twist a little when you are turning the wood but once you stop turning and ready to start the next straight cut, the blade twists back to normal.
I hope I didn't confuse this.
Please experts, chime in and correct me.
Thank you
Sam