I don’t own one, but I’ve been tempted by them recently after hearing a Serek SS on a David Byrne live video. Not being able to justify the cost of a Serek, I tried a few short scales at my local GG. The JMJ Mustang is marvellous, a proper vintage sounding and feeling P bass in a smaller package. If I can move my Maruszczyk Jake along, I can see a JMJ Mustang in my future.