Yeah, you want to lower it down, but stiffen the suspension at the same time. I'm not sure if anyone does an anti-roll bar kit for the tmaxx, but it might be wroth having a look for. You could consider taking the spacers out, getting the hardest springs, and cutting them down slightly, to lower the truck. Don't cut too much though, or it'll bottom out - just do little bits at a time, then test drive, then maybe take more off.