I can think of lots of reasons not to use Technidol with TP and they all come down to cost at over #2 per film. Acutol at 1+20 used to work (high acutance, compensating developer)probably similiar to Rodinal, but Paterson recommend FX39 at 1+19 now and that does seem to keep the conrtast under control(posted 8988 days ago)