WillQ, I am the one who led the 'slow' group out of Livingston. I only have two data points with you and based on what I saw from the first observation to the second I was impressed with your overall improvement. You had quite a bit of weight on your KLR. I have a KLR and know they also tend to plow when in sand and mud. I did see you struggle the first time as you rode towards me and then seemed relatively comfortable the second time coming into the rest stop. Given your experience, the circumstances and conditions I hope you do NOT judge future rides on the basis of this first experience. Think about lightening up the bike, keeping your elbows up and ride as high on tank as you are comfortable, it will help.
The only picture I have for reference. First day in the mud.