I know I keep kinda coming back to it and I haven't really looked at the actual numbers to see if it would result in Fixers being OP'd but...
In terms of HoT's and people saying that the healing wouldn't be fast enough would being able to use all three lines (Long HoT, Short HoT and % HoT) together combat this, or would that be totally over powered?
If it would be acceptable then it doesn't seem a major change to just create a new healing school for the % based HoT's. Maybe FC could do some testing to see if that would be fair?