I'm about 170lbs 5'10". My current board is a Saloman156, and I was thinking of going with the 157 in the BTX TRS. Most people are talking about riding a size smaller. I ride mostly all mountain, don't spend alot of time in the park unless I'm feeling frisky. I'd say a majority of my riding style is groomers and backcountry. I mostly ride Mt. Hood too. Any advice on whether to go with the 154 vs. the 157? Thanks in advance!