RRD sail designer John Skye just released a couple of technical videos explaining how to rig and trim your RRD Firewing MKIII engine and how to tune it to the high end racing performance using the smart RRD RTS upgrade. 

What is it RTS (RaceTuningSystem)?

New for 2015. A Race Tuning upgrade package is now available converting an off the shelf Firewing into a 4 cam racer. With the additional of an extra camber as well as a new custom designed batten set, the weight is further reduced and the top end can be pushed even further for the ultimate speedsters.

Discover HOW TO upgrade your Firewing MKIII using the RRD RTS (RaceTuningSystem):