Re: FFP scope under $600????
Well I picked up a Falcon a couple years ago to play with just to check out the concept of ffp and a mil/mil setup and have to admit its still chugging along pretty good. The only issue that has come up so far is that the travel at the end of the erector gets a little "imprecise". Tracking through the first 6-8mils is right on the money but then it gets a bit erratic, sometimes at the upper end you get a true mil of movement, sometimes it is between .7-1.4mils.
Like mentioned, you get what you pay for but grabbing a used falcon for $300 might be a good way of seeing what you need vs what you want. Worst case you send it back down the road for the same thing you paid for it and have some experience to guide your next selection.