Replying to T Halls vs. Domains

So my skis are shot and I need to get a new pair for next season. I'm 5'5, 120lbs, and ski on the east coast (lotz of ice) and basically only ride park. I do about 60% rails and 40% jumps. I've been looking at the T Halls and Domains. I'm just not sure whether to go with 166's or 171's on the T Halls. Not sure if 169 Domains would be to big considering that they measure bigger. I rode on 168's this season and rode them fine. Give me your suggestions and opinions on which you think is a better choice. I'm open to any suggestions, just looking for a softer ski that will perform a little better on rails. K+ to good responses