Can't argue there, Suicide!
Although the gearboxes take a little more effort to get into than they probably should, it's not much of a problem. I've never had to replace, rework or redo a differentail because it failed, broke or whatever. That's pretty **** good considering I'm pumping 9200kV through it's system.
It's pretty rock solid down there.
I have however tightened the differentials because I felt they were too loose from the factory. All in all though, that only took about a half hour to take apart, test and put back together. Not that bad when you actually enjoy doing the work.
What are you and your bud's plans for your 1:18th?
Cheers,
Kyle.