[Agent86]

when going for your licence, you MUST double clutch now. if you change clutchless AFTER you get the licence, good, but to do it on the test is instant DQ.

the best thing you can do is to get in the practice truck in a BIG open area like a deserted carpark and practice changing up and down the lower box.

once you can do this, then try the upper box as well. leave the splitter for once you are confident with full gears.

it may be useful for you to go for a run with your mate and watch the tacho, his accelerator foot and the gearshift, and see how its syncronised together to get a nice shift.

i find that gently accelerating then putting light pressure on the gearshift towards the next gear, then rolling gently off the throttle is the easiest way to get it to drop out of gear while learning. you then time the rpm drop to get it into the next gear from neutral. if you chop the throttle off it will 'grab' in gear and not want to change out.

personaly i tend to change very fast, split shift the top box ( 18 speed behind a c-12, so its torquey as all getout). but its taken me a few years of practice to get the timing down sweet. altho i find no use for jake shifting on the new elec engines. too much delay in the jake coming on.

the biggest thing, would be staying confident. once you become intimidated by the rig, you'll make mistakes. thats why i suggest a deserted area to play with the box.