Would it not be easier just to have them email you pictures of some of their blanks, and allow you to chose which one you like best? Or is it something you can't chose from with just pictures? They may not offer pictures anyways though.
That's how I picked mine. David sent me a photo of all the completed ones he had, and I selected from that. He'd probably do the same for blanks, though I guess they'd have to shellac em to really see much.
Super happy with mine, $125 for a Rosewood / Plain Maple, 18-pin. Best part was, first one came with funny buzz in hit, like a loose ferrule, and a little uneven points; called David, he took it back without question and built me one from scratch, within a couple weeks. Good quality, great service.
But now reading the OP, wish I'd spent a few more bucks and picked my own woods. Now I have a reason for another cue. Need one like a hole in the head...