I'm not really attempting to answer your question just thinking out loud. I wonder how much the crimson and white clover will compete in the spring. Crimson seems to grow taller and faster. This might smother some of the white clover. I don't know for sure. I can tell you that I'm skipping crimson clover altogether because the white clover lasts much longer in the plot. Crimson clover will fade fast as summer approaches. White clover will last all summer long with timely rain events.

Lastly, if using the mix above, be sure to sow your tiny seeds separately. Those don't need to be covered as deep as the grains.