I'm finding myself having issues getting the SS to work in the third position. Safety works, but binds a little, semi works just fine, but when it's in the middle position, the bar doesn't move forward enough to contact with the hammer. I've modified my trigger several times trying to get it right, and I fear going any further will bankrupt me. I'm using an Aero M4E1 Lower and Upper, Wilson Defense BCG, with a Geissele SSA-X Lighting Bow trigger