Surprised that only 9 letters is the current max. I compiled a list of 9 and 10 letter words. Oclvanitygen says I should find a 9 letter word in about 2-4 hours, and a 10 letter word in about 5 days with my 660ti pumping out about 20mkeys/s.

I'll let it run for a few hours while I do my laundry and post what I get

Edit: didn't get anything, I'll just let it run, added in -k and -o for a results file... Will post in the morning, should defiantly get some by then.
Does your list have just a dictionary of words? The record is 9, so you would want just 10 or greater if you plan to beat it. I'm sure that would change the probability a lot.
There is a huge difference between searching for any 9 letter word vs 1dictionary. Are you looking for case sensitive as well? Toss an -i on there and it should go even faster.