update...
I have a few examples here...in one the port screw screw is already munged (a fine but broad slot), one had none to begin with, and the rest I'm not budging (all soaked in oil) yet without fear of marring... The whole purpose in not re-tapping, was in th'hopes of preservation (damn you purists) but th'original screw is fragile. I've made custom drivers with ease before, but these seem to be screws that were intended sacrificial!
I have a few examples here...in one the port screw screw is already munged (a fine but broad slot), one had none to begin with, and the rest I'm not budging (all soaked in oil) yet without fear of marring... The whole purpose in not re-tapping, was in th'hopes of preservation (damn you purists) but th'original screw is fragile. I've made custom drivers with ease before, but these seem to be screws that were intended sacrificial!
