Have a F52SWCE.
I have two issues:
First, The input jack (guitar end) keeps loosining up.
You need to access an internal nut through the sound hole.
Is a real bear to re-tighten short of going to LMI or Stewmac and paying $40. for a special tool... maybe that's the only answer.
Unfortunate design. Have seen others with an external nut for tightening.
Second, and maybe the reason for the constant loosining of the jack is that the input port is ridiculously tight for any standard cord jack.
With a little twisting can get the guitar hooked up... sounds sweet
but when finished the jack doesn't want to come out... as in, just short of a crow bar, doesn't want to come out.
Have tried using a light app of dielectric lube... worked better but it's not right.
I want to address this issue so I can put it up for sale as I attempting to buy a good friend's Collings OM2H... Going over to the dark side, I guess...[
Has anyone experienced this problem with any of the B-Band units?