I have the 12.5. I really like it. However, when I got it, there was no 11.8. Had there been an 11.8, I probably would have opted for that.
Now, I am used to the 12.5 and I don't miss my skinny shafts at all. Some guys say the skinny shafts deflect more. I do not know if this is true. I like the 12.5
kollegedave