Homebrew PCBs

I don't know about circuit trace problems with paper coatings.
I do know that using the paper and soaking it with a sponge whilst the 
pcb is still hot steams the paper and softens it a lot.
I don't have much more time at the moment to investigate (uni work) but 
if I have a spare couple of hours, I will try a complex pcb design.
One other thing I do know, a product called 'cold clean' available from 
Maplins (yeah, not exactly the best source) does dissolve hp original 
toner easily, so reworking is really quick.

regards, PK