I joked, one time, that here in the South, we consider anything under 3 lbs a steak! I got "grilled" on that one, so I won't go there again.
Not sure how a cut that small will go. I once did a 3.9 lb pre-packaged corned beef flats, and it took 11 1/2 hours to hit 195! Figure that one out! Little sucker just wouldn't cook, but that may have been due to the amount of brine still in the meat (had a drip pan full). Anyways, hope your little guy works out better!