V4 (tamer) was built with the hopes of taking some of the "Russ Meyers" out of previous versions while still making it exaggerate a little when paired with busty Loras.

NSFW version: An f16 trained checkpoint combining Stoiqo Afrodite 3.1

with Photoboobs 1.2. I added a few breast-friendly loras in there, but not nearly as heavy-handed as I did with the Russ Meyers version.

Russ Meyers Edition: The boobiest version of Photoboobs. Using the same mix as Lite, but I baked in a lot of SDXL models that focus on making giant boobs - most specifically, some of the work by Perky Bandit.

Don't expect much finesse out of this checkpoint. Using a word like 'busty' or 'cleavage' are like using a sledgehammer.

Lite: Same mix as version 1.2, but f16 instead of f32.

Version 1.2: A fuller, f32 photorealistic merger with a slight focus on the checkpoint's namesake.

Version 1.1: I use the iOS application "Draw Things" to mix/merge Checkpoints. This is the first attempt I've done since May 2024. At that point, my merges made with Draw Things no longer worked with Automatic1111, and so I stopped pursuing them.
This one is a test. It seems to work just fine on my end. I'm hoping someone is kind enough to download it and let me know if it works with whatever app or workflow you're using, or if the merges are still only compatible with the Draw Things app.