I bought some 2016 5th gen Trail coils from a fellow member to put on my 4th gen V8. From the research i have done, the 5th gen coils (as long as they have 6 coils like the FJ coils) are comparable to the FJ Cruiser coils.
The only backup I have for this though is a fellow member who stated he purchased 5100s with the front set at .85 and a full set of 5th Gen 4runner coils, he claims he got around 1" in the front and 1/2" in the rear.
I have the same setup and plan to have them installed on my vehicle in the next couple of weeks barring my mechanic hurting his back again.