So I'm brand new to the DE world. Had my first shave last week. I bought MWF as my first soap. Maybe not the smartest move but I figured, "how hard can it be." Well, harder than I thought. I had read that the stuff was hard to lather and its true. I had a really hard time lathering it. I did test batches with different amounts of water, different water temp, etc. Nothing seemed to be working. I always ended up with very little lather that didn't protect well and dried quickly.
I had a break through today, though. Instead of using my tap water, which is really hard, I used Brita filtered water. I nuked a cup of it for about a minute and it was just warmer than room temperature. Using the technique from this video http://youtu.be/u_x9AMJi1RI I made a ton of great lather really quickly! It was so good I couldn't just throw it out. I lathered up my face and took a pass even though I didn't need a shave. Pretty great results.
My issue really just seemed to be the hardness of my water. Hope this helps others. Thanks to all those who posted on other MWF forums about your tips and tricks. They helped a bunch.