I tried one on in the store and the sleeve length seemed the same as on my Shak. They didn't seem unusually long to me at all. In fact, they are shorter than on some of the other brands of cycling stuff that is desinged to fit in the cycling position (compare to say PI or shebeest in the same size). But, I also found the 'boucle' weave a tad scrathier than the weave of the shak. Its a more textured weave which looks very nice, and when I tried it on with a Kate base it didn't bother my skin. Its a very well made piece too. I didn't buy it only cuz it was too sporty for my needs. With the hood it felt more like a sweatshirt, and I wanted something to go from professional meeting to bike.
You know I found the folks that answer the phone at Ibex very helpful, reminded me of the TE gals. Why don't you just ring them up and ask them to measure the sleeve length on the size you are considering.