I haven't had any since I had my losi aftershock. That thing would snap turnbuckles if you looked at it wrong. The split upper RPM arms for it would snap whatever the ones RPM included just as easily as well. Never had an issue again after installing lunsford.
On my e-revo 2.0, I modified a set of RPM true track hubs to fit the larger inside bearing and found an outside bearing that fit, so that did away with the rear turnbuckles as I'd snap the ends off one of those at least once a bash session. Never really bent the rods though... I think the fronts are getting bent because the wheel hits them on bad landings. Not sure why the pushrods get bent... I do like to air my trucks out a bit and the landings aren't always 100%. lol!