I want to buy and inexpensive Chrony, something like the F-1. I only load for a .38, .357 mag, and a .44 mag. I see some Chronys mounted on a tripod. How would you use one at an indoor range? The shooting booth at the range I use has average lighting but not what I would consider bright. Is this going to be a problem? Since I can't set the Chrony up in front of the firing line can it be set up on the table of the shooting booth and then I would just stand towards the back of the booth? I've seen where some people have bought re-conditioned ones for $50, is this another way to go? I just want to eliminate one of the variables in what I reload. I only kill paper and steel targets. I sometimes get to shoot outdoors but only every 6-8 weeks.