So during a session last night my consular player brought up an idea for a build he was thinking of which involved dual wielding Lorridan Gemstone Lightsabers in order to generate a crapton of setback for Melee and Ranged defence. He thinks that by Dual wielding the sabers he can have both sabers bonuses stack, I however am not sure on how it works. Second he was insisting that he could generate ten/eight setback depending on the type of attack, I'm wondering if there is an upper limit to the number of setback that can be generated in any one check? The total of 10/8 came from armor, talents and the dual sabers. If it isn't possible I want to let him know so he doesn't get his hopes up.

Going by the most recent developer answer, multiple sources of defense/deflection do not stack, so you cannot stack the benefits of Lorrdian gemstones.

ETA: Stacking armor, defensive weapons and defensive training (I'm assuming that's the talent that's providing setback) is a little trickier. Defensive Training does say that it replaces any Defensive ranks the weapon already has, so it probably shouldn't stack with the Lorrdian gem (or the curved hilt for that matter). I think the Defensive quality should stack with armor, but I'm not 100% sure on that.

Ok thank you so much! I had a feeling it was a little fishy. Well now I gotta go burst his bubble oh well.