Ladislav Jancowrote a review of Voile Split Kit (DIY) on February 16, 2009
I built two splitboards, first took me about 5 hours, but it was due lack of tools. Second was for my wife and it took me less than 2 hours to built (without cutting and waiting for the epoxy to dry out). It is pretty easy once you know what to do.
It takes around 2 minutes to put it together or apart on the mountain.
Both snowboards are 7 year old SIMS with wood core. Its pretty solid also on the icy surface and I dont notice any obvious difference.
But carry screwdriver with you at all times, its handy.