[scardanelli]

Yes of course I could complete all the tracks in Studio One, and then export to PT.

But part of the composition process is the surround sound, placement, panning etc. Therefore I cannot complete the recording / arranging of the project in Studio One. So it makes sense to bring it into PT at this point. Had I thought more carefully about the limitations of bring tempo maps into another DAW I may have started recording in PT sooner, but I didn't. So I'm where I am and going forward will certainly record anything with variable tempos in PT to start with.