It's hard to be sure without more 'real-world' testing (i.e. actually playing the game progressively and seeing what the requirements of that are), but it was seeming that Coordination giving both Reaction and Toughness was a bit OP (LOL, coord being OP, we definitely don't want THAT xD), so i've made a change to Coord and Reas and what cross-attribs they affect, see here:
http://qelserv.quadronyx.org/QELServ/AttributesWill need to be tested, i worry that it may make make a particular attrib setup quite desirable and good for too many situations... but perhaps not...
Anyways, we'll test like this for a bit, if for some reason it's no good, i can see another option that would at least help the situation a lot... maybe even be the better choice.