This is THE secret - at last!!!
When using a good badger brush, cover the puck with exactly 2 tablespoons of warm water, then let your brush soak for 5 minutes in hot water. Then give the brush two good shakes. Swirl the brush 30 times in a clockwise motion, then 30 times in a counter-clockwise motion, them pump up and down on the puck 10 times, followed by 10 more clockwise swirls then 10 more counter-clockwise swirls. If bowl lathering, place one teaspoon of water in a bowl, and swirls clockwise in the bowl 25 times, then 25 times counter-clockwise. Do this Monday thru Wednesday. Thursday thru Saturday, add 10 more counter-clockwise swirls. On Sunday, continue with the Thursday-Saturday routine, but add 10 more pumps up and down. Keep in mind this routine works best with tallow based soaps (except MWF) as well as Institute Karite and most Mama Bear's veggie soaps. When using a boar brush more water is required for the first 2 weeks; give the brush only one shake and soak the puck with 3 tablespoons of VERY HOT water. Also with veggie based soaps (except Provence Sante and most versions of QED), use double the amount of clockwise swirls while skipping the pumping motion altogether. With MWF, when using the upside-down approach, be sure not to confuse clockwise and counter-clockwise, as they will be reversed, whether using boar or badger; pumping will be the same. If face lathering, always double the number of swirls on the puck, unless the loading process is done upside down with a boar brush, which works best with cold water on Tuesdays and weekends. Once you've got all of that down, you can move on to more elaborate techniques, which will yield truly prodigious amounts of perfect lather. At this point once lathering swirls have become consistent, you can load your brush for time instead of swirls; so instead of 25 swirls, you might swirl for 30 seconds. This is highly advanced, so don't rush into it. When using Italian soft soaps or Arko, be sure to load the brush in indirect light, as bright, intense lighting can cause a chemical reaction which results in a thin, airy lather. If you shave in fluorescent light with a badger while wearing a purple wig, be sure to use only cold water to help avoid this effect.
Follow the above instructions to the letter. If that doesn't work, try something else.