Based on what I know, Back QB is the speed/power of Backwards QB only, having nothing to do with going forward... Having thought like that, I have never once attempted to allocate anything in there.
[All systems online. Kojima output normal. Synchronizing AMS Compatibility... Done. Engaging Primal Armor... Done. All systems green. Firing main boosters.]
"Blackwing, let's fly!!"
"Blackwing, let's fly!!"