That just about covers it guys.
Just recieved my GC2a Launch Monitor from Foresight Sports and had a blast with it today - seriously impressed. I took it to my local range along with my laptop and compared actual ball flight with the ball flight on the laptop. It was spot on every time. When the actual ball flight was a small fade of a yard or two, that's exactly what the flight on the laptop showed. A small draw shed exactly that. It was a pretty calm day and firing shots at a 100 yard flag (lasered) and on the laptop they fell exactly where they were falling in real life. I'd say it was good to within a yard or so in any direction.
Once I had confidence in the data I was getting I spent a bit of time playing with launch angle and spin rate on my driver, I tend to spin the ball far too much and it stalls a bit. As I got my spin rate down to about 2500 rpm I was able to see a pretty instant gain in distance. The funny thing is part of reducing the spin was backing off on the drive a tad - actually went further than when I thrashed it which just sent my spin numbers skyward. Lesson learnt there!
Back home I spent a bit of time hitting into a net and had a blast on one of the courses, The Brabazon, which was good fun and will keep me occupied should the snow close the courses and ranges. I've got 4 others Turnberry Pebble Beach, La Tempete and Spyglass coming soon.
All in all I was hugely impressed. For my money this system is the way forward, particularly for home practice with limited ball flight - you only need 8 inches. I haven't (yet) got the HMT addon that tracks the clubhead and gives all the data such as dynamic loft, face angle, etc as I have a pretty good idea what it is just looking at the result ie ball flight. I would say that when or if I do upgrade to that at least I will be getting totally accurate data.
Anyway, that's my initial thoughts - seriously good bit of kit.