Continuing on with my (first) amp project, the '79 SFDR... I noticed what looks to be a 220pf cap that has come loose next to the Vibrato channel Treble cap (220pf) Should I solder back in or remove? It doesn't appear on the layout I've been using (https://robrobinette.com/images/Guitar/AB763_Models/AB763_Deluxe_Reverb_Layout_DIYLC.pdf) Any idea the purpose of this cap? Maybe part of the mods? (For those of you who haven't been following, the amp has been modded with "mid" pots) I have been considering just replacing all the ceramic caps as well. They do seem a little tired. Thoughts on replacing ceramics? As always your input/wisdom is greatly appreciated. Thank you!