I used to mix Chicory with common clover like ladino when I was using it. That worked out well. The chicory performs in the summer when the ladino goes dormant. It lasts for over half of the life of the ladino before it was over taken. It was worth the cost and effort.
I stopped mixing chicory once I switched to Durana. First, in wet years, my Durana never goes dormant at all. In dry years it only goes dormant for a very short period. So, the value of the chicory is less for summer performance. Second, Durana is slow to establish but it aggressive once established. It outcompetes chicory in just a couple years and is much more persistent than ladino. So, again, the chicory is if less relative value. I found the cost and effort of adding Chicory to Durana was not worth it in my area.
Durana should always be planted in the fall with a cereal grain nurse crop. Winter Rye works best because of its allopathic effects on weeds. The most important thing about establishing Durana is timely mowing the spring following planting. Each time the WR hit about a foot or so, mow it back to 6". This will release the Durana without killing the WR. The WR will take up space keeping weeds at bay while Durana is establishing its root system. The WR will eventually die on its own during the summer.
The cereal grain becomes the attractant the fall the Durana is planted. If you want to enhance that, you can add a small amount of Groundhog Radish (any Daikon radish). Keep the rate at no more than 2 lbs/ac.
By the way, I've mixed crimson and Durana and wasn't real happy with the results. Patriot White is a better companion clover for Durana. I'd use my crimson elsewhere.
Thanks,
Jack