I couldn't find the latest build doc for the Sharkfin (aka Maestro FSH-1). After some digging, I found this--is it the latest? https://web.archive.org/web/20180712194845/http://www.madbeanpedals.com/projects/Sharkfin/Sharkfin_2015.pdf
this is the pcb https://ibb.co/DQKN5DK
I'm trying to eliminate what sounds like some power whine (could be the charge pump?) and then swap a transistor to move the LFO up in pitch into a more musical range (looks like 2n5088 in Q4 should do the trick for that). Any help would be appreciated :)
Here's what it presently sounds like (I did noise reduction in post, but it is noticeably there when effect's engaged)