In order to facilitate custom orders with Sig. Plastics, Hashbaz and I began coordinating with SP Sales on how to better proof and understand their internal production processes several months ago. The result of this is the rather incomplete set of wiki pages here:
http://wiki.geekhack.org/index.php?title=Signature_Plastics_Parts_NumbersAs people place large custom orders from SP, I would invite them to start using this resource and adding to it using the information they learn from SP sales. Note that SP sales has access to this page for corrections, but please, try to make sure the information you record is correct
