The ancient tailpiece wire on my 30's Czech hybrid snapped last week. I replaced it with a multistrand steel wire. That was a great improvement, I think the tailwire has been slipping for some time without me noticing. I tuned the afterlength to 5ths, because the length of the tailpiece won't allow for 4ths. The tailpiece almost reaches the saddle. The first try at the correct length for the wire resulted in a near perfect tuning in major 6th. That actually sounded quite good: a very fresh, bright sound. It made me wonder if people sometimes use other tunings because 4th and 5th tuning or no tuning at all. Even though I'm not sure if that sound was caused by the 6th tuning, could it also have been the longer tailwire?