It's the stability alright; just as you said about the head stability, the boosting speed seems to increase as well. I think it has to do with the total value of the stability though, but I haven't read the overall stability statistic on the AC yet, or familiar with its in-game mechanics, nor have enough experience with ACV. So don't quote me on that. :p
Anyway, just to be sure (so the others can interpret it too), here's what it says;
Edit:
PS: Random pet peeve; my service provider sucks. Still can't view ACU even after flushing the DNS or cleared the caches, etc, etc.
Anyway, just to be sure (so the others can interpret it too), here's what it says;
Quote:機体のアンバランスに関する性能。
にの値が大きいまど、被弾時や着地時に生じる反動の影響が制抑され、また、ブースト時の移動速度が上昇します。
Edit:
PS: Random pet peeve; my service provider sucks. Still can't view ACU even after flushing the DNS or cleared the caches, etc, etc.