I took the abrasive pads off, and it will run round my dodgy oval.
It did better with the load than the D10, but to be fair, I have taken the weight out of the D10.
Both slip, but the little Piko does better, as it has more weight. - And traction tyres.
The block weighs-in at over 2.3Kg - As high as the kitchen scales will go
As you can see, this is a pretty vicious gradient, the track is filthy, and cross-levels are silly as well!
600mm level, so 1:24, worse in places, but I tend to run with the worse gradient running downhill.