I built up my courage and removed the SD card.
I was able to now shorten the boot2.wav (Vader breathing and walking sound) for bank6. On my saber (which I assume all are the same) the boot2.wav had about 8 seconds of silence after the boot sound finished.
When I first got my saber and accessed bank6 (Call of Rage) the first boot sound selected was boot2.wav. When the sound ended, I tried to turn on the saber and it would not turn on. I had a few previous out of the box fails and I feared this was another. Instead I just had to wait for the 8 seconds of silence to finish playing.