That all depends on you! I R2ed it about 6 weeks ago with our 3 kids as passengers, at 240cfs! We got stuck about 5 times, two times pretty good! I went back with my oar rig, 3 weeks ago, 500cfs and breezed through with no problem. This was with a 14' boat both times and 9' oars the second trip. I have actually oared as low as 318cfs! So I think the lowest I will take my kids down will be 300.
So your 16 will be a bit tougher. I can think of about 2 spots where you may get stuck. How wide is your 16'? My hyside is about 6'4", I bet your 16 footer is more like 7'8". Can you borrow or rent a 14 footer?