i have a twin hammers. its about the same size as an rc10. its a cool little rig for sure and pretty tough, but a huge pita to work on mostly from the crap buttonhead hardware they use everywhere.
i took mine out to an outdoor track once and it did really well. i had a pro4 3300kv with a mmp on 3s, the thing was a ton of fun around the track. ive also seen them do very well in scale comps with just the addition of a locker up front. its a really cool rig and if they had only made it a little bigger i think it would be more popular today.
if the bug bites you, axial and vaterra are your two best bets. axial has a very firm grip on the majority of the scene but vaterra has done some nice work with the twin hammers and ascender. ascender is a hell of a nice truck compared to the aging and boring scx platform. hpi had something really interesting they were recently teasing but it seems the future of hpi is unsure.
and then there is the rc4wd tf2 and gelandes. fun trucks but definitely more scaler than crawlers.
