Good input Ed. I was far from prepared to spend $7,000. The Miami guy is my friend Ed Finley who devised his own survey program. I bought a circa 2007 Leica TPS805 Ultra for $3900. Jerry Jackson got religion and found one for $3500 and I've, since, seen them for as cheap as $3200. Make no mistake, a new Leica Flexline will run $8500+, but, really, all you get is Bluetooth and USB capability. You are correct about the color green. whatever that wave length is, it seems to be occasionally problematical. You are also correct in regard to range for reflectorless sights. I'm good out to about 200M. For the majority of my surveys, I set up between 3 and 4 ball. I do not use the pregates for a center line. The Lion program uses the gates. It will perform no calculations until all 4 gate balls are entered. If I'm shooting reflectorless, I will shoot all 4 gate balls first which allows me to see course errors as I do the rest.