dope i only used 2 first reflection points. i'm still very happy with the absorption panels. batman style. the bass traps clean up the bass to a small degree. my listening room is 12 x 15 x 9. I have a non closed rear quarter of the room and a slider to my left (first reflection point). i also have three diy absortpion panels on the top of the front wall behind the speakers. i do agree with you that dealing acoustically with your room is the most important thing you can do with your system.
i will give some diffusion panels a try behind my listening position to.
thanks again
dave