[Kevan]

Suspension on our wood track is a retrograde step.  I have a Revo Nissan with 3D chassis, pod and rear suspension, it feels great on the bench but the suspension 'gives' in corners causing the rear to lose traction.  No doubt it would be fabulous on plastic track.

As far as stiff chassis is concerned, it's 100% more important the chassis is stiff front-to-rear, not necessarily down the centre but my NSR Mosler with original 'soft' chassis has piano wire superglued down either side of the chassis hole for the pod right up the the front axle line so it lies flat rather than a saggy belly and it's the lap record holder.  This car is the old Evo 3 with SW pod and Shark motor.

In fact I'd say a 'hard' plastic chassis doesn't seem to work as well as a braced 'soft' one as you still need torsional flex even with a pod.

We race non-mag with a strict mag effect limit of 25g.