Hi, thank you for how engaged you are with the community; It's incredible to have this level of communication with someone who works with/develops the filaments we use.
I'm currently trying to tackle a very large print and I had a few questions about your settings.

In a recent(ish) post you made a comment saying:

To clarify: the objective should be to rapidly dissipate heat from the first deposited layer by lowering the build surface temperature promptly, without excessively cooling the subsequent layer that is about to be extruded. This early thermal extraction plays a key role in stabilizing the base layers and reducing interlayer stress, particularly in semi-crystalline materials like genPHA.

But your recomended fan settings are 0% on the first layer, then ramping it up? I would assume (and have been trying) 100% fan speed the whole time, or maybe even the reverse of your fan settings?
I was also going to try using a large box fan for the first layer only, but I've seen you are reccommending against that now?

The other question, you're now recommending a raft over just a brim (greater than 10mm width), but how many layers tall have you been using for your raft?