This is the base SDXL checkpoint, with the following changes:
DPO Lora merged in at 0.25 model / clip strength
SPO Lora merged in at 0.75 model / clip strength
Baked VAE replaced with SharpSpectrumVAE XL
This is basically an opinionated set of changes I found after a bunch of testing to provide an overall better basis to work off of.