First off, 155 probably isn't too small for you, my roommate rides a dh 156 i believe, and he's about 5' 10". I haven't heard anything about the k2 fuse, you might wanna look into the lib tech youth in asia. I was in my local shop today and that is what the guy recommended to me, since I too am looking into doing more park stuff and jibbing. He also said the youth in asia board handles pretty well at high speeds. I was just on ebay and saw one for like 200 including shipping. I think it was last year's board, cause that seems ridiculously cheap.