Pam's sync input capability is great for me because my Elektron boxes can put out DIN sync on a MIDI out or thru port, and ALM sell a $10 cable that splits that into the 3.5mm clock (24 ppqn) and run input signals that Pam's needs. And as you point out, Pam's is really useful in many other ways. But the OP's Tascam 12, as far as I can tell from the manual, only puts out MIDI clock and not DIN sync.