You may want to research Walter Biscardi’s experience with trying to get tape in and out of Premiere . He has had an ongoing battle using a variety of hardware like AJA and BMD. I dont think he is very happy with how its working. If memory serves I believe he also uses FCP to digitize of tape when using Premiere. Good luck.
Tom Daigon
PrP / After Effects Editor
http://www.hdshotsandcuts.com
https://www.youtube.com/watch?v=XRIg6h-LIm0 (Best viewed at 1080P and full screen)
HP Z820 Dual 2687
64GB ram
Dulce DQg2 16TB raid