I've tested the ramping function, but I've found some odd behavior.
setting was 24f to 100f, but after the end frame, Red one doesn't hold the 100f I think.
It reduces to maybe 70f or 80f, so the moving is noticeably faster than 100f(end frame rate).
I'm not sure it is a bug or i've missed some setting.
I've tested and monitored it on build 16, all on Red.(not captured yet)
**ramping from 24 to 100 works great, but after the ramp Red doesn't keep the end frame rate.
**it was on-record mode. BTW, what is the external GPI trigger anyway? I can't find one on Red store.