There was a dude a while back who made a thread about his use of the Rock Lobster as an Electrician. From what I understand, he did a lot of meter changes, so he was stripping some larger wires. Maybe not 750's, but probably #3/0's.
It sucks that photobucket is all messed up, he posted pictures of how he stripped the wire.
The Rock Lobster is almost a wharncliff and it is VG-10. From what I remember, he would slice the insulation almost parallel to the direction of the cable and run the corner of the bevel brushing against the side of the strands and slicing a section of the insulation off, then once you get a strip of bare conductor, you just pull the insulation off the side and cut it.
I think the key is: do whatever you have to so that the edge doesn't contact the metal on the inside of the cable.
I have cut some small gauge copper wires with a S30V Paramilitary 2, but I wouldn't want to cut a lot of them with it, I'm sure it would eventually take damage.