Unfortunately, but my background in networking is mostly theory and some practice, but not standards. I can't comment on the general design, but I would ask why you're limiting yourself to such a small portion of the 10.x private range. The subnetting would be much cleaner and easier to understand for humans if you just subnetted on octet boundaries instead of something like 255.255.255.252. 10.x is a large range, I would personally waste IP addresses to use 255.255.255.0 as the smallest subnet.