Im currently looking to build a golf simulator in my garage and was wondering how far from the skytrak would the net/screen have to be to give accurate readings.
Might be worth having a look at the Ernest sports es16 which has just been released. It has photometric cameras like the gc2 and four Doppler radars like track man so should give the best of both worlds. I think it's priced at $4000 so pretty cheap considering.