Today I've been tinkering with the setup of weights on the loco for traction.
Initially I removed the pick ups from the front motor-less motion to allow the wheels to move 'free and easy', thus obviating the need for any weights in the front tank.
To get enough traction for the rear driving motion, I needed to add some extra weight, this was done by positioning it in the cab roof...
Then it was play time, the loco pulls 4 coaches or 8 or 9 wagons; the Radius1 curves on my layout slow the rolling stock down as there isn't much play in the Accucraft wagons' wheels (really should run these on Radius 2+ curves). Anyway what the loco can pull is my typical train anyway, so success.
Run test with goods train .... (youTube)
I am going to look into the option of powering the front motion again, although I may need a new controller with more oomph to drive the two motors.
Also bought some loco crew (from Modelu).. primed but not painted yet...