FFP is a must for LPVO's for me. Regardless if 6,8 or 10x. SFP really cuts into the effectiveness of what the LPVO is built for.
Properly designed reticles, adequate training on having a repeatable index on the gun, and vision control/discipline equate to speed on close targets.
The notion of hanging back up red dots off the gun to be "faster" is somewhat asinine to me. From an efficiency standpoint doesn't make much sense.
The current craze of "high mounts" also boggles my mind.
Cheaper LPVOs generally:
-Do not track as well as higher end (this can mean everything or nothing to you)
-Poorer quality glass
-Adjustments that a more a SWAG than clearly defined
-Chincy reticle patterns
-Durability
All those things can be overcome minus the durability.