Moving gfl and resistance both over to blue slots leaves yellow slots with very little that anyone would want. +2 school dc's is ok but anything of real consequence casters will aim for +3 boosts or have one of the items with +2 to all schools. Resistances are easy enough to get elsewharere with the spell, ship buffs, wands, 30 point pots etc.
Blue meanwhile added more to an already pretty heavy field of augments.
In general I think most people are gonna end up wanting more blue slots then they can get and use yellow mainly for colorless augments.
Either some of blues need to be moved to yellow like good luck and gfl as these are effects mostly found on accessories anyways not armor. Either that or yellow needs a big boost. A possible change would be to add + skills of a stat like you see on shroud items. have a +3 cha skills and a +2 cha skills one that can use two yellow slots to mostly replace a shroud item would be nice.
Readding toughness as an option would be important too.