Klein_Center_4B

For V3.3 schnell use 4-8 steps.

For V2: use Euler cfg 4-5 and 30 steps, switch to DPM++ SDE or Heun SDE for example if poses are an issue it usually helps.

Well, at fist I wanted to fix the 4 step which is a pain so I improved the Base a bit, still has anatomy issues however.

Feels liker Euler, Sa Solver, DPMPP SDE GPU work ok.

Time to build a bigger dataset I guess.