Replying to 181 T-Halls for a 6"4 Guy?

Long story short I might be able to cop some t-halls for dirt cheap, problem is I don't know how well they'll fit me. I've skied short skis before, and tend to because its hard to find skis that truly fit my height, plus I ski almost all rails anyway, what makes me more nervous is the flex, since the ski is flexy and it's short I'm nervous as to how stable it would be. For a reference point, I've skied domains in a 179 and loved them, my favortite ski to date, (k2 measures short so the 179 was really 184 or something). Anyway thanks in advance