Easy way to make larger solar cooker

http://www.earthtoys.com/emagazine.php?issue_number=07.10.01&article=cooker
shows a simple way to make a large parabolic dish. Anyone want to try it?
The method is about 3 months old so testers are needed!
The sooner it is tested, the sooner it will be used widely.
I cannot test it more due to cloudy winter setting in.
It is up to YOU!
Test it, post your pics and results and help move it forward.
Thank you
Brian white
BC
Canada
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