Hi again after another break, everyone. For the past 2 months I've been switching back and forth between the grey SP chassis and the stock black chassis on my MR03 -- which covers both Stock and Mod class racing -- and I think I have enough data to report now. But especially since this seems to be a somewhat controversial topic with mixed results, I can only present my own impressions and it would be great if you guys and gals reading my blog could respond with your own.

So...