@AutoCraft Aus replied Correct to both of these questions.So, let me know if I get this right.
4. Slinky Long Travel kits use the same shock for 50mm and 75mm lift heights.
5. Slinky Long travel kits use a shock that is 50mm longer than the Intermediate Long travel shock.
Can I assume the "SLT" Intermediate & HD coils in the 50mm & 75mm are the same free height since they use the same longer shocks. (AC spec 56511 & 56512 2.0 shocks)