I am doing a DYI system and would like to have a left and right handed tee position. I only have 12 feet between my walls. The system I have allows to move the hitting position off center by 2 feet. When I set that up, it doesn’t seem like there is enough space between the two hitting areas to stand. What is the preferred spacing and what position do you recommend?
The first comment I will make is if you go into purchasing this product assuming you will get the same accuracy as a $10,000 simulator, you shouldn't purchase this. Expensive professional simulators use ball tracking to provide the most accurate 'simulation' to an actual hit outdoors. They also require large equipment, and in most cases a dedicated room to be used solely for the golf simulator. This simulator uses swing (club) tracking to provide calculations and assumptions on where the ball should go.

Simulator golf is a growth industry – and a business opportunity. More and more businesses are ensuring their customers get a great golfing experience by investing in the TrackMan simulator golf solution. For everything from a single bay installation to large multi-bay simulator projects, you can be sure to get what you need from our complete, fully customizable one-stop-shop solution.
This device performs very well considering the price compared to multi-thousand dollar launch monitors. It's extremely easy to use and carry in my bag. I had a problem with it when it first arrived and called Voice Caddy. They were available on the phone, listened to my problem and asked me to send the unit to them. Within hours of them getting the unit, they identified the problem, phoned to tell me about it and shipped it back to me. Not every product is going to work 100% of the time out of the box, it's how the company responds that is important. Voice Caddy did a great job responding.
There are a few things you need to keep in mind if you are seriously thinking about investing in a golf simulator. First off, if you want to maximize your user experience, you need to get the simulator working properly. For that, you’ll need a good computer and a decent graphics card to get the best visual image possible or a dedicated high end golf simulator.