I'm lookin at the RX-IIII for my birthday maybe in december, and was wonderin if you guys have used one? If you have, I gots a couple questions. How complicated is it to use? Do you feel the TBR (true balistic range) technology does what it says its supposed to do accurately? How clear and crisp are the optics, and how do they perform in low light. How quick and easily does it range various targets at various ranges. Ex.-trees, animals, ground, through light brush, and in bad weather. Any help would be appreciated! Thanks