Track - Murrells Models

To help the tracks align themselves with the sprockets it's a good idea to grind the teeth off at an angle on each side, as below

I have been having problems with thrown tracks, due to the low tension of the tracks, the track can come off the rear idler very easily, see picture below, to remove some of the play in the tracks I have stopped the front and rear wheels suspension from working by installing a screw as a bump stop, this completly stops the suspension from moving.