Rhodes Chroma Polaris

so i finally replaced all the s+h caps- all 6 sets.... but still its 
out of tune and isolating voices 5 and 6 show that they are raspier 
than the normal scratch sound  as heard in 1-4... i had trouble 
soldering 5 and 6  and worked on them longer than the others. and i 
wonder if lets say i  over heated  those caps .. did i screw them up?  
I did damage the trace just a bit on one The little copper ring came 
off the hole,  but  I cleaned the lacquer off  back a bit and made sure 
the solder flowed to cover  to it and got a good continuity.  I think i 
had one bad voice before, now i have 2  i guess ....I have 
no 'scope' ..so do i need to order a few more caps and try again? or 
could it be something else.. (It wasnt really hard to do the soldering 
after  i did the first couple. but i started with  5 and 6  and 
possibly messed it up)