I can't say I blame you - not only is it a very time consuming job there really is no 100% guarantee that you have removed every last bit of corrosion and it's just lurking in there ready to strike!!!
I guess I better get my finger out with the replacement WPC MPUs here then........ 
yes you better.
thats another reason why i am stopping, there won't be huge difference between the price of repairing them and a new home pin board.
as far as the latter goes I haven't had one do it yet, I even clean all the vias out with a 0.8 or 1 mm drill bit (depending on the board) then fill them with solder, suck out the solder and re flow them again. But it is still possible for it to happen.
I may still do the White star boards when needed and as long as they are not to bad, they are nearly impossible to find.
