Yeah I use the continental grip on my backhand.
I have never seen or even heard of anyone using a semi-western backhand. That has to be very hard on your shoulder.
Maybe Ill give it a try tomorrow.
Racquet: Wilson PS97 String: Prince syn gut @55lbs in mains, ISOSPEED Baseline Control 16 @50lbs in crosses, Wilson 6.1 95s backup same string setup