I mentioned in my previous post that I had to start using a Thumbpick when playing Dobson's song "Time 2". Never having used one before, I went down to my local music store and bought three of them in different sizes.
When I first put one on my thumb, it felt really awkward, but after about an hour or so of persevering, it started to feel more natural, if a little bit too long. I ended up taking a pair of nailclippers to one to make it shorter and rounder, then filed it off with a nail file. Perfect!
I still cannot play with the thumbpick on for more than two songs or so, otherwise my thumb feels like it is being strangled and the circulation is cut off. There is a way to make them fit better, which is explained in the video below. I still haven't tried this yet, but may do so with one of the spare picks and see if I can make it more comfortable.