I'm watching this thread, but I have not done many things with my Bolt.
Lust runs in 2010 I have finished trying different props with default setup. Have find out that 30&32 props are good enough and I would prefer 30 in many cases with stock setup.
This year I bought another one Bolt from HK (in order to not be alone at the pond).
Now they comes without ESC, so I ordered Turnigy Marine 60A ESC from HK. (I know it's too big and heavy, but that was the only I could order from HK at that moment).
I received 2nd boat, made some soldering with the ESC and almost ready for the first run, but still have not done this.
The only thing, that disappointing me is that drive dog's part of drive cable not holds firmly with the flex one (cable is square shaped and just put in the rod). And it is also greased. First I decided to glue it, but seems like it is designed to be so.
A little bit strange, because in the first Bolt all the cable with the rod looks like one complete part.