UPDATE; I rushed to school after work, with stool in the back strapped to the mould still with straps keen to butcher it and peel it off its form.

 There was alot of waste, which i wasnt happy about, and was a little made at myself for not refining it, but it still was only single sheet 8X4 sheet.

 Here is a great over exposed shot....its meant to capture the amount of waste. the form is purposely built 100mm to long in every direction. This allowed a number of things, such as a good footprint for the router when its needed to cut, flexibility of choosing the better piece of the final  form if some glue didnt stick, and the option of tacking the edges with screws and still not mucking up the final layer if it was needed to get the curve, which it was/

 After cutting off the unglue layers, about 50 mm set in from the edge i could take the screws of the first sheet out, which held it while i put the second layer on....i was nervous to see what the actual final join would be like, but it turned out to be top notch, And i was overly stoked. Had that been messy and loose i would of suffered a mood fouling bout of the shits. Seeing that this was the first time i had ever done this i was stoked at the result, and grateful for the luck so far...

 One screw was burried in a place that i couldnt get to, but being in a offcut area of wood a hole saw was called in to remedy the problem, liberating the from from the mould without hassle..

 some sweet bends and it loosens off nicely. It probably flexed out 10mm either side from the tension, increasing the size of the footprint, but not too bad.

 Happy kid

Whoa! Hot dog! It takes the load with ease...100kg applies and no sweat. It feels sturdy and its ergonomically comfortable straddling it and sitting normally. The arch feels nice and the butt is held well. Im really pumped now. The thing i dislike the most is the simplicity of the shape, but hoping once its cut into shape it will become more interesting.