i think the delay has to do with all the conversion going on. There's nothing wrong with that, just that it takes a little time. (digi001: preamp->ad->ptle. Tascam: preamp->ad->TDIF/adat converter->ptle. The tascam will take more time because there's an extra conversion there...) You can try to get the tracks in perfect sync by nudging the tracks that are delayed a bit. You need to do a little testing though. With the same buffer-settings as you have in your session, record something through your console. A short click or beat or hit or handclap, anything short will do. Then record that with one mic connected to the analog in AND the tascam stuff. (dont worry about quality, just get the signal in. the only thing you need to see is when it starts). After you recorded it you zoom in deep, and select the part that is delayed, with your meter-reading set to samples. Once you figured out howmany samples it is delayed, you can nudge all those tracks back the number of samples you measured, and everything should be in perfect sync.