You might get more responses posting your question on the Audiocircle forum. GIK has their own forum there and Bryan and Glen post there regularly. I think Bryan is the facilitator.
Room treatments
I'm just about ready to buy some GIK bass traps but was wondering, for those familiar with the tri trap and soffit, if the tri trap were to be placed with the hypotenuse towards the corner wouldn't that yeild two 17" surfaces of bass "collecting" instead of one 24" surface? Glen, Bryan, anyone??