I've been eyeballing the Velociteck Prostart but at $1k I am reluctant to pull the trigger without some more info. I understand mostly what it does but a complete description is remarkably hard to find. Does anyone out there use one? Has it been valuable in improving starts and helping to take advantage of wind shifts? Based on the videos that I have seen on what it does I am somewhat skeptical /confused on whether it really provides relevant info. Not sure how else to describe it without going deep into geometry. I assume anyone who uses it will understand where I am coming from on this. Maybe.