Yes, I have noticed I din't need the spacers to fit my Savox, it all seems very nice and smooth down there

I also fitted a metal arm, so that's OK.
I'll look at the long chassis, see how it goes for me on Friday and over the coming weeks. We have a fantastic Cougar driver at our club, and I'm hoping he will help me out with the set-up. If he says it needs the long chassis for our club, then I'll buy one
Thanks.