We have 2 Infinities, an Atlas 250 and and 6 Autosporters on wheeled carts run by a Longrange Wireless system.
The Autosporters are flawless. They never miss unless there are no birds in the stack. The Infinities are choosy about targets and the Atlas just throws targets. It is clunky, but works well. You have to be careful not to bend the throwing arm, but for the price, it works well and Scott at Atlas couldn't be better. For the money, it's a good value.
The Longrange is marvelous. It will throw from well over a hundred yards.
We keep ours in 4x4 huts and move them around wherever we want. You can even make a platform, put a 5/8" axle and wheels and put a 2 inch steel bar with a trailer hitch on it and tow them anywhere you want with an ATV, a golf cart, or a vehicle.
Make sure you put solid wheels on your carts. That way, you don't have to keep pumping up soft tires.
I have a slightly sloping roof to drain the water and a 5 watt solar panel on each unit. They keep the batteries pretty well topped up in the summer weather.
I also bought a load metre that gives me voltage under load and when it drops below 11.5 volts, I put the charger on it. That doesn't happen often though.
The Longrange system saves me 45 minutes set up time and 20 minutes close up time. It is really a good stsrem. They have a new one coming out that will control 32 machines on one field. The old system controls 8 machines on 4 different fields. You need to decide on the machines before you buy the wireless as they install the appropriate plug on each receiver.
Although I have the preprogrammed release as well as the portable one, you really only need the portable one.It runs all day on a nicad battery, but needs to be plugged in when not in use as it is always on.