Strange question, have you tried turning it round physically instead of just switching the controller reverse switch from forward to to reverse to eliminate the controller being the cause of the issue.
Not a strange question at all
Yeah I had tried that and the results were same, I also tried a different controller and also a 9v battery.
Mine was the same to begin with, but after half-an-hour running each way on the rolling road, its pretty much even now. My P was similar. I suspect it's a case of getting the lubricant evenly distributed around the gear train.
A lot of these locos will be purchased for use on "shunting planks" and without a rolling road or a circle of set track, they'll never get properly run-in.
Even later on, the running of many locos (big and small) tends to deteriorate unless they get an occasional canter away from the terminus-fiddle yard shuttle.
I applied a little more lubricant and left her running on the rolling road for a further half an hour forwards and she seems a lot better now
I have a dedicated programming and testing unit I've built and always 'run-in' on the rolling road and test slow speed running on the track, given myself the flexibility to be able to test/run-in in either DC or DCC
Many thanks to those who have replied
Edited by chuffinghell, 12 July 2018 - 10:22 .