That’s fine. You can use your lite boards as a reference as they’re virtually identical
Right, so the first SoC revision had the vulnerability which was subsequently “patched” in the second revision SoC, third revision SoC is termed as “Mariko” and does not have the vulnerability at all - this SoC is also used on Lites.
Right, it’s more efficient (hence why all SoC related rails will measure lower etc) which in turn improves battery life etc