Hello
I have some VS tugs and I never experienced a problem on one propeller requesting to use only the other one ... Anyway it could be a good idea - that need one channel... with allready 4 needed for the two VS !!
Why you fill some part of the hull with a kind of red resin ?
Xtian
Your correct in saying it is resin, there are two reasons for my choice in using this
1 It fills and bonds ALL the penetrations in the bottom of the hull, when I first built this model (Venture [see capt jack's avatar]) I noticed that the drive could flex the ABS hull so I used the resin to beef up the strength.
2 It bonds the ballast lead to the hull so that it can not move, this type of tug is VERY lively and suffered a few hard knocks until operations were learnt (very different to that of std screws or even ASD's)