You DO know that you can buy flat head lock washers don't you? They might
help in getting the screws out as I think you have
too much contact area.

Yup. Seriously considering that option.

Regards,
Joe Agro, Jr.
http://www.autodrill.com
http://www.multi-spindle-heads.com

V8013

My eBay: http://tinyurl.com/4hpnc