I think I'm going to name this one the "disaster blaster"...
Problems with streaky and beading varnish.. and ultimately, peeling off, of entire layers ...
Oh well ... at least now I get to do it all again !
I discovered that isopropyl alcohol helped me take all the varnish (and stain) off from the spalted maple without much risk of rubbing through...
(I also suspect that using the same as a cleaner between varnish coats is what lead to the issues in the 1st place...)
image 1 and 2... The problem!
image 3 ... The long road to recovery ...
Using the ispropyl alcohol and rough plastic scouring pads brought me back to the raw finnish.
I've also sanded the back and sides back to raw wood too .... back to square one !