I was just looking at my SCSD & the E string is much smaller where it is wrapped with thread than the main part of the string. If you cut a long scale string to fit & you have to cut all the way down to the fat part of the string, it may not fit into the hole in the tuner. One thing you can do is measure the length from the tailpiece where the string is anchored, up to the tuner & then measure the same length on a long scale string & see how much you will have to cut off. If you have to cut all the way back to the fat part of the string, personally I wouldn't do it. I just held a long scale Ernie Ball E string up to my SCSD & while it could be cut to still have part of the thread wound skinny part of the string to insert into the hole in the tuner, you would still be wrapping part of the fat part of the string around the tuning peg, & the fat part is not really designed to be bent at that small of a radius so that could cause problems. There are several brands who make short scale strings, but finding them in your local store can be a problem. The Guitar Center by my house doesn't carry a large stock of Short scale strings.