Where do you have them mounted? Because I grew up skiing on non twin tip skis, skis mounted close to center ski very short for me. I have ridden a pair of center mounted 180 cm twins and they didn't feel any different than my TMs, which are mounted at recommended. If you centermount, it won't be a big deal.
P.S. How tall are you? I'm only 5'10" and I have no problem handling 180cm midfats.