If I was cutting that many, I would probably be bouncing all over the place LOL
My thought is this, will you KNOW what a light/medium really looks like, before you get them all cut? To my eye, these can change until I get the rest cut and layed out. Or they can change depending on what other fabrics I put with them in the block.
So I guess I would cut a bunch, knowing I made need to cut a few more of one or the other once I get to piecing the blocks :D:D:D