Went super wide with them and actually sounded great. The "Seam" was really minimal and I covered the whole street quite well.
I definitely want to try the SM80 with the Th118. We were definitely lacking in low mid output. I think the 118 would have helped. Our EAW SB750 subs sound great 90hz and below but just sound "woofy" and loose when I tried to crossover higher.
Overall I was VERY impressed with sound quality and output of the SM80. Considering you can put this on a stand and sling it around by yourself it is really really an impressive box.