- Put 4 NO.3 Micro-Trains springs around the 4 brass pickups on the trucks of the tender.
- Close gently the 1st (the drawbar truck) screw leaving another degree of freedom to the truck: transversal oscillation. Close firmly the 2nd screw (rear truck), to prevent transversal movements. In this way you set up an isostatic equilibrium. Put 10-20 grams of lead inside the body of the tender.
Try and discover the benefits.