Tone Deaf,
When you recorded with the 660 did you have the -20 pad on?
Absolutely! At least I can say that with the Busman mod 660, there was no way to run the box without the pad engaged at a normal volume amplified electric instrument show.
I had a conversation with one member and this bothered him quite a bit. His feeling was that this meant that he wasn't getting full use of the features offered by his 660. Frankly I couldn't see that logic because I was getting perfect recordings with the pad engaged. I guess the other person figured that the gain of the 'normal' setting should have been correct for the volume levels in the clubs.
Anyhow, I figured that with the pad engaged, that gave me plenty of workable range to engage the normal setting if I ever needed to do softer volume acoustic shows, or maybe even nature recording and such.