We've added a new PDF to the Developer's Corner called 'Cheat' Sheet. It is a single (double-sided), printable page that knowledgeable track modders can glance at if and when they occasionally run into trouble ... a technical summary to trigger the memory. It is NOT a holy book for those who have never completed a track. Sorry ... The document was put together based on frequent questions asked either here on the forums or directly, and was validated by our 3PA artists -- thanks guys! It covers most (all ?) obvious technical pitfalls that force you to either aimlessly debug your issue for endless hours, or post your question on the forums and twiddle your thumbs waiting for a reply. Chances are other people have shared the same frustration in the past, so ... that's what this little PDF hopefully takes care of.