I tried that method...but found it was faster to drill the spot welds...that particular strip is a PITA no matter how you do it. It always tears at least a little on that lip...tedious to repair it before installing the inner wheel house as well...but hey, tedious seems to be the name of the game when replacing all the sheet metal, not too much left to go at this point...just finish the wheelhouses and quarter, also got to examining the trunk floor closer...looks like I am going to have to patch the lower portion where the tank sits(at least on one side) and a couple other small parts...then the tail light panel, and all the rot will finally be gone though I will still have a lot of misc metal work to do afterwards most of it will fall under the modification category rather than resorationAfter pretty much taking my car apart piece by piece like you are doing, I’ve found a lot of times it’s easier and faster to just use a 4.5” angle grinder as opposed to drilling out spot welds. Cut everything out just as you did until it’s just the strip of metal with the spot welds left. Then just start grinding the strip of metal you want to remove with a flap wheel or grinding disc. The metal will get thin and start getting blue hot. Once it’s paper thin it will just break off at the spot weld with light prying with a screwdriver or maybe the twist of a pliers. If it doesn’t break off easily, you didn’t grind it thin enough. Careful, it’s hot.