Heya,
I bought a Mini-7b to replace my M16-02z -- I have small hands.
The build of the Mini-7b is great; however, I'd suggest you try out the chisel edge for cutting boxes before you get one.
Why? It cuts funny. In fact, it doesn't cut very smoothly at all. First, it has a tendency to veer off to the side because of the asymmetrical nature. Second, it feels like because of the way the force is applied, you get some tearing/shearing of the material you're cutting, especially if it's thicker.
I've had this experience cutting up boxes, and it's, honestly, a pain. Cutting tape is no problem since tape is so thin, you don't get any drag along the edge.
It also makes opening mail envelopes REALLY hard.
Finally, you might not want to subject the Black-T (Teflon) finish to boxes/tape for utility tasks, as there have been many reports that the finish comes off easily. Mine is rubbing off in very light wear.
A satin finish is probably better; I've found the boron carbide (BC1 for you Benchmade fans) coating to be really durable.
Then again, the chisel ground edge does a number on raw meat (uncooked flank steak, tri-tip... although a 2.9" blade isn't exactly convenient for cutting up dinner... it was for SCIENTIFIC PURPOSES.)
I ended up replacing the Mini-7b for box-cutting and mail-opening chores with another knife, but I do carry her when I go walking about.
Just my opinion/experience,
-Jon