If you want to reduce draw calls, simply use an atlas. But slice up your model intelligently, as in... by an artist at creation time. That script will likely create more slices that are really needed, so you'll end up with long thin triangles at one end of a strip. A 500 triangle model has more than enough topology to use…
Yep, I should join gamedev actually, I'm sure there's some experienced game programmers there that could give me some tips. I must say, I'm plesantly surprised by the general level of technical knowledge here though, considering it's a 3D artists forum afterall. I guess the very nature of 3D means you have to be somewhat…