Sorry to resurrect an old thread, but this thread is the reason I found this forum (through Google search). I decided to email Central Milling and wanted to share a snipper of the info I got back as I can't imagine I'm the only one wondering about this:
"The protein content will be very similar (upper 13%) but the most significant difference that you will probably notice between the two flours is how much water they can absorb. The flour particles for the High Mountain are slightly larger than the T00 and because of that, will take a bit longer to fully hydrate that particle compared to the T00.
In pizza and Italian flour world, Type 00 and Type 0 describe how fine the flour has been milled, T00 being very fine."
Does this mean as long as we are not in any hurry, the 'non type 00' will perform very similarly to the type 00?
Oh and hello! New around here.

-Ken