I hope this is OK to post. Nothing here is for sale, just information. For those of you interested, I have been collecting and cataloging all of the different variations of the Big Muff for years and I will be making one of every schematic of the Big Muff that I have from 1969-1984 plus the Russians. There are over a 100 to do and I will be writing a blog about each one, what makes them special and what they sound like. At the end there will be an online video comparing the best ones from each year. You can find the blog here: https://www.stompunderfoot.com/suf-blog.html I hope you enjoy it.