Great to hear that the big rig has had a couple of outings. Have you managed to get it working?
Still slightly to full so will likely need a luff re-cut on the main to get it workign nicely. I'm using my current class jib as it was pretty much the same size. the Kite i currently have a 49er kite on her but it's a bit to long in the luff so need to play around with a 40cm mast extension or find another donor kite.
other than that she does work but the window for it being effienct and quick is very small. you go from underpowered to powered up before std rig. but very quickly get over powered and then it's dealing with the extra drag round the course. need to get the working window wider.
But the idea is to spend as little money on it as possible and have lots of fun. Also currently plug and play with no majore modifications to the boat from std rig to 12. Currenyl takes about 20 min to swap between the two from fully rigged in one to the other.