i just want to know...

[kHeEnz]

not sure, at least to my eyes, a little awaken %speed increases the whole speed considerably if you are with speed set, so i'm not sure it's "addition"; the awaken % may be On Top of the whole 100%+200% (*3), you have with the set? dont know. only a dev can confirm (how their computations are made, about anything).
agree for belts, should also stack.

yeah I hope dev can confirm it... I wanna know if I can u use those wep and belt awaken stat to increase my speed more xD