doug - welcome back! hope you had a relaxing vacation.
i have those same tires, neil - got 'em for my stealth. i pre-mounted them on the SM and it does look mean, but you're right - they're hefty! i should have snapped a pic before i took 'em off.
more mixed results. this morning i threw a matched 7 cell pack on the discharge tray, and it fried. i had all the +'s and -'s lined up - i have no clue what happened. practically brand new, too. so - it's time to take the plunge into lipo. maybe some trueRC 8000 packs. i have to get a balancer too, so i can continue using both my Ice chargers.
the good news: i tore the back end off (separated it at the bulks) and there are wear marks on the custom driveshaft. i spun the center drive cup by hand and the rear wheels are smooth...didn't take the front off as i know i checked those too before putting it all together. so i took the monobloc off, and threw the stock titanium rear center dogbone on. once it was back together, it rolled quite free. problem solved. and now it's more 'shortbus' in length... lol.
the only batts i have is a pretty well used matched 7 cell set, so i'll throw those on the charger and see what kind of mess i can make today...