Yes, the fit is fine. TTS works for me in the knit, although I did not try the size up so I don't know how much larger the next size would be on me. Much like last year's knits, they run a little short and this year, I notice the sleeves are on the short side. Usually, I have to get sleeves shortened on jackets or I cuff the sleeves on knits. With the EG boucle, I don't have to do either. If you are tall, I would imagine you can get away with sizing up.
Because my vest is abit tight if I button up & that's why I'm thinking of sizing up. But, looking at the measurements of the two, the shawl collar knit is abit bigger. So, staying TTS may work just nice.
Unfortunately, I'm not tall at all.