I just bought a set of medium scale rotosound flats rs77 for my mustang (thought I could just cut them down a bit if required) and there was absolutely no tension in the strings at all. I was horrified. I thought there must be something wrong with my ear or my tuner, but nope... EADG tuning was completely unmusical (I couldn't actually really tune it eadg), the strings had no tension at all, I had to tune up to F#, B, E, A in order to get any semblance of normal. Anyways, I got some advice and ordered a set of d'addario short scale chrome flats (from juststrings) but they haven't arrived and I kind of would like a set of flats for tonight... although I could live without I guess until they arrive... So the question is: Has anybody had any experience cutting down long/medium gauge strings for a mustang? Is that even worthwhile, or is there something intrinsic to the scale of a string besides it's sheer length? Would higher gauge strings be more desirable to provide more tension? And finally, why do most of the short scale sets that I see almost always seem to be light gauge, wouldn't higher gauge be more desirable on a short scale bass? I'm slightly confused, and googleing hasn't really given me any answers on this regard, so I would really appreciate some info from someone who knows more than I on this matter. I'm tempted to get the highest gauge strings I can for the mustang as it is shortscale... thanks for your help!