Hi

Have you got the correct cables from the DMD unit going to the relevant channels on the receiver as if not this can give odd results. They should be numbered with little sticky labels and plug into the corresponding sockets on the receiver. Another thing worth noting is that depending on the radio gear you have and the location from where the kit came from they do not always match up with the instructions. It depends whether the handset is a mode 1 or 2. I also am a UK tanker and the instructions state the right stick is for forward and reverse (up and down) and the left stick for steering (left and right) but my UK handset is right for throttle and steering. I got my Tigers from HK so the instructions are for their handsets. I do have one handset I use on my trucks and it is the other way round (as per the instructions). The only other thing I can think of is that you have connected the plugs the wrong way round, in other words in the correct slot but 180degrees round from where they should be. Can you take a pic and post it so we can see the receiver wired etc?

As for cutting off too much plastic Ihave also done this in the past but as long as the wires are not touching and the plug fits snuggly into the receiver with all sockets connecting with their relevant pins it should not matter too much.

cheers
Gorehound