You also used button head screws for the engine... I always use cap head so it uses a bigger screwdriver whenever possible. I hate small head screws, too easy to strip.
Ah, yeah, alloy wheels would avoid that issue as long as you run alloy hexes as well. I just remember when I went from old weaker engines to my first LRP28 on my aftershock running t-maxx 3.2" wheels and spun the hex in 2 of them about 3 tanks after break-in. I've only used 17mm since then...
That HCR titanium was some tough and pricey stuff. I had a LST chassis deck that was HCR. I had to modify it to install an engine with a pullstart... took a lot of dremeling to cut out a very small piece. Was blasphemy to take a dremel to it, but you do what you got to do. :) Luckily, I got the...