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Fraz, arch ...you both bring up intersting points with respect to handling and overall "performance" that I have been road-testing, as I continue to develop track surfaces (a really good racing surface announcement is coming soon).
To me the dNaNo has been very close to my kart racing experience, and although I never raced shifter karts (the very fastest), when I did drive them ... speed was never the issue, it was turn-in and acceleration out of the corners that differentiated performance between the shifter karts and the slower karts. And so it is with the d'NaNo ...they are very quick out of the box ...too much so for most drivers ...it's tweakling them to go where you intend them (oversteer/understeer, camber and toe-in and turn-in) that is so very diffiuclt to dial-in, because every minute change is amplified by the cars light weight. So where am I going with this?
Racing science has certainly taken a back seat to on-track testing with the d'NaNo and strategies that worked with the Mini-Z's manifest in different ways on the d'NaNo. The very best handling (on an EVA foam-like material) has been by using 19 Rear wheels up front. I had to modify the front suspension parts to fit, but nothing major ... just a quick Dremmel and shaving down the kingpin (which also lessens weight).
I have done extensive testing with the wider front tires/rims and prefer that combination to just using stickier rubber (i.e. going to a 10 or 20 degree front). With wider fronts, there are less traction rolls and the handling is more natural with less understeer on fast sweepers or banked corners.
I have tried this mod on the Porshe and Mazda LeMans cars and will be doing the Ferrari and others soon. So if you make some light weight 19's, I will give them a try.
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