I did try to drop down onto the 34t at one point coming up to a steep hill, but it wouldn't drop. That's why I know I was in the 50t for sure. After the hill, I dropped down onto the 34t on the flat and it shifted with ease.
To be honest, I wasn't looking forward to the ride. I was camping and sleeping in a tent, didn't get much sleep, had one too many beers the night before so took a couple of Ibuprofen tablets. It quite possibly gave me super powers