I'm a fan of the length of the burn of both the red and green MD but I prefer to mix them. This blend brings out the best qualities of both as they compliment each other extremely well. The length of the burn is outstanding. I'll usually add a bit more of a red or a green depending on the situation. Side note; I have to thank TKS for this order, they went far beyond being generous. No other Kratom company would go to the lengths TKS does to keep us happy. I was having a horrible week and my order made me smile. I've never dealt with a better company, let alone a Kratom co.