I gave mine a quick blast round Cov's astro track yesterday during the gap between heats and finals and it was so nice to drive.
The 7.5 (geared on 25t) felt a little sluggish down the straight so I'm thinking a 6.5 is needed round there, but round the corners and over the bumps it was really good. I had it setup to Adam's Worksop settings as I ran it indoors earlier in the week and it was really good even on yellow mini pins on astro lol
Now just waiting for my shell to come back from paint and I'll be running it a lot more
It felt a lot nicer to drive than my 4wd did lol, but that purely down to being on the wrong tyres and being too tight to buy more after leaving the rest at home