ive had my t4 for two years and only broken a handful of parts. 2 front arms, 1 steering knuckle, 1 rear arm, and 1 ball stud.
i borrowed a mf2 in a pinch at a local series race for my main and the car felt pretty damn good. it had a slight push but the track was very very tight, 17 sec lap times. on my t4 ive run the same setup pretty much anywhere with minor adjustments (camber link, oil, shock position).