I started on an Avanti 4 odd years ago, size wise I could be your twin (if you a young stud that is

)
I went to a Allwave 9.6, great stable board, surfs pretty good for what it is.
About 6 months ago I got a allwave LTD carbon, 9.5, fraction less stable, maybe not as good on glide but in the waves its unreal, it has raised my skill level, then I put a quad set in and its better again.
Im not sure why you have the option of a 9.1 and a 9.10 ? the 9.5 LTD is 32.25 wide and 170L, I think the 9.1 is 160L.
I demoed a 9.1 and found it hard to get board speed and I was missing waves.
Go with you head and wait for the right board but im not sure why there would be a months wait, I was in a shop on Friday and im pretty sure they had the full range of Allwaves.