ORIGINAL: echthelion
of course all cars have there flaws but my point being if another company can make solid cups why not hpi. my main reason for selling my xs was the drive line problems im sure its alot like cummins said its down to luck. but with me in 10 or so packs cant remember i had my slipper go my pinion went and took my idler with it and 2 of my center cups went. all on 2s with the castle 3800kv motor and the crap stock tires and we all know have very little grip. i was very happy with the plastic strength just not the metals but in the end we all have our own opinions
Then I must be in the lucky group because all 3 of my XS's haven't had any issue with the drivetrain like you have described..