ORIGINAL: AffordableRC
To be perfectly honest each Redcat seems to have minor bugs that need to be worked out but this is part of learning and the RC experience in general. A couple examples of these bugs would be adjusting throttle linkage, adding locktite to an occasional bolt, things like that.
All rtr cars need some adjustments and loctite added to screws, hpi, associated, kyosho, they all do, they come with a basic setup but all rtr need some fine tuning to get them 100%