I don't use the 4-tec, but instead, I use the Team Associated TC5. One thing for sure is when I went to my local track NOT ONE PERSON had a 4-Tec. Traxxas has a bit more fimiliarity with off-road, not touring. I just don't think you get enough bang for your buck. Good for beginners though.
Team Associated, Team Losi, Corally, X-Ray, Tamiya, and Hot Bodies are the most popular touring car manufacturers. And there's a good reason for that. Most have high competition level factory team kits with all the extra goodies to give you that edge on the competition. Things like carbon fiber, titanium nitride shock shafts, etc. are included on most of these kits. But the 4-Tec just doesn't have that top notch touring ability in its archives.
E-Revo Brushless.....4s lipo/Coming SOON: HPI savage flux HP
Electric Monster Truck Association (EMTA)~~ electricmonster.webs.com