There is no compelling issue about using an AlphaTrack meter but there are some practical considerations.
First, vets tend to like pet-specific meters since the numbers are a bit more consistent with a serum chemistry analyzer which is the equipment that does the lab values when they send bloodwork out. The pet meter read a little higher than a human meter. The fact that an AT meter reads higher is a mixed blessing. That a human meter reads a little lower means you have a greater margin of safety (i.e., you would intervene sooner if you saw low readings on a human meter).
There is a huge difference in cost for strips between the 2 meters. The strips for the AT meter cost about $1.00 per strip. If you have a day when you need to closely monitor Zoot's numbers because he's running low, you can burn through a lot of strips. (Somehow, I suspect that vets may not be cognizant of what the difference in cost is. You may want to educate your vet what the cost per strip is for the Relion vs the AT.)
Finally, if you take a look on the
Lantus board here, you'll note there at two options we use for dosing, the Tight Regulation (TR) Protocol and the Start Low Go Slow (SLGS) method. Both of these approaches are based on readings from a human meter. the TR Protocol was developed and research by a veterinarian and was published several years ago in a leading veterinary journal. The instructions for TR are very clearly based on a human meter.