The #16 is a big improvement - much nicer to use. I still have a #11 but I consider it 'disposable' now!
As an aside there are new versions of the keyfob coming along very shortly that are slightly larger/heavier but will give higher quality ... including the option of 60 fps. E.g.
So you might want to wait a couple of weeks for one of them (depending on cost etc.). They say the #16 will remain in production though.