We are liking the EZ Jax allot. The system is working as said and has exceeded my expectation. It does involve another step than the Lazy Jack system, retracting or deploying the lines, but I'm fine with that. Considering I don't have the issue of the battens catching the lines. The EZ Jax I purchased came with four lines on each side, about 33" apart on the boom. Most Lazy Jax I have seen only have two, another plus in my book.
Our first time using it was last weekend during those 25 mph gusting to 35 mph winds, I learned quickly you must be dead into the wind for it to work best.
Choosing this system was based on cost and the easy installation. If I had the cash to spend I would buy all new carbon fiber spars from ...dig that new pocket boom from Tartan.