In addition, I have a 1081L which is the same blank as the XS9MHS. I live this freaking thing, however only up to 2.5oz. It has great backbone, but lifting a decent size fish up the side of a jetty...that's a different story
From what I understand the xs91mhs and xs81m and built off of the glb blanks. Basically the same blanks as a gsb but rated a little higher. I have the xs91mhs as a custom in spin (glb1081mh) it's a nice stick. I use it for rubba or when I feel like fishing a 9'er instead of a 10'er. Plenty of backbone for boulderfields and BW's, a little stiff for the smaller bombers other light swimmers but I mostly fish the magnums which it does ok, but it'll throw em' if you need to. It would be my choice over the 1084 because of it's reliability and durability.