Yes for now i built as per manual and it worked. Have you already built yours, Dave? Would you suggest other shimming than in the manual? Maybe Lee has answer to that question.
I alway shad the problem with the soft B44 Gearcases that i never knew how hard to screw the halves together to not have any influence on the play. Also the Tamiya Gearboxes are MUCH harder than the B44 ones and also the Tamiya Bearings seem to be made of better quality than the B44 ones.