Finally had some time to take the 12x20 out and shoot with it, its a dream to behold. Not to mention a people magnet. I managed to shoot about 8 negatives so far, but haven't developed them due to the lack of suitable trays. Getting large trays here has been a real problem, having them shipped over is rather costly.
I found some trays at the local hardware store they are 22 x 15 inches, a little on the small side but they are completely smooth and very strong.
Any thoughts on whether this might be too small or if there might be any problems? Up until now I have done all my processing in drums, but thats not longer and option it seems at this size.