Go for the upgrade if it has adjustable brakes, those alone make a huge difference. After testing different controllers on an 8 second track one day for curiosity I noticed up to 0.4 seconds per lap difference. Now thats huge. Thats an entire lap in a 3 minute heat. Im not saying your particular upgrade will achieve that but I would suggest borrow one of a fellow club member and compare times before spending any cash.
Rick
Rick
