The screws are still stuck tight as ever, broke two screwdriver blades. I have tried several applications of Kroil, heat, ATF/acetone, tapped the screwdriver handle every kink suggested all to no avail. I'm going to heat them again after having been soaked overnight with ATF/acetone. Next step will be to try a hand impact driver the kind you use with a hammer, I'll have to grind a bit to fit. Stay tuned for progress report.