I hope this helps Cainlord!
E-mailed them again to day and they did responded witn in an hour.
1. The Matrix stock spring is the best all around spring we have tested so far. Our pro-drivers has been using them with good results. More spring rates are being R&D at this time.
2. We do not have a manual for NX26 at this time. Please refer to the factory matrix manual for parts and information.
3. Top - 3 turns Mid - 1/2 in from flush , bottom - 4 turns in from flush
4/5. The matrix setup sheet from pro-driver Andrew Smolinck, Jason Ashton will be available for download within the next few days. Attached is Jason's lastest setup
So enjoy