A HuBI is a Human Bike Interface, just about the most important part of the complete package. (Human, Bike, Backpack, etc.
When your HuBI has a slight problem in the sensitivity arena, you can live with it, but sometimes the small problem wants to break free and can cause a lot of discomfort.
I do not normally suffer from discomfort in the HuBI area, but I did have a saddle sore shortly before I started the first attempt at Beit Bridge to Cape Town, and it was not pleasant. So today I am just giving the HuBI a chance to heal so that I am in no discomfort during the Crater Cruise this coming weekend.
Will train again tomorrow morning with the House Wife Group. By now I should be able to keep up with them...