First time that I tried to shave it was a disaster. I set up the futur in level 4 and did the first two passes with level 4 WTG, ATG. After that I set it up on level 1 and did the last pass against the grain. I had a lot of cuts and weepers.
Second time, I set it up in lower level 2 for the first two passes and level 1 for the last pass. Still I got some cuts, and my skin was irritated especially in the area of the neck.
That sounds like blade flex to me. Add a shim between base and blade.
Prewar Tech + one Shim =... - https://www.badgerandblade.com/forum/threads/prewar-tech-one-shim.516377/#post-8930003
If you find that helps, think about a razor with a more rigid design. A rigidly held, stable blade is a smooth blade.