Following another builder's lead of this model, I added 2.5kg to my counterweight. It seems to be adequate thus far.
Finnished up the remaining details last night...
And then it was off to the quarry...
What a humongous, heavy & aukward piece to carry down a narrow & steep stairwell... almost tripped on the 1st step!
I have the pressure set to 20bar, 2.5kg of BB's in the counter weight & after the 1st 5amp batt thru it last nite, I'm reasonably happy with the way it works. I'm thinking the swing esc, a MTronics Viper Marine 12v/15amp esc will need to be upgraded to something better, it's acting a little wonky putting 15-16v thru it... although I have the EPA set to 60% on both sides to limit the current going thru it.
I got some tinkering to do on it, then I'll go tackle that dirt pile outside before dark maybe. More movies tomorrow.
http://www.youtube.com/watch?v=lU23bIpibuE