It sounds like the issue @oberst3221 is having might be related to over-curing or an issue with the machine rather than the material itself. We do quite a bit of validation to ensure that there aren’t ‘bad batches’. I can attest to Grey V3 printing much more nicely than previous versions and it’s definitely worth giving a try.
Automatic support generation does sometimes miss small local minima but is pretty reliable. Manually adding supports is always a great option if you have the savvy to know where to place them. This article and video on our support page goes into greater depth than much of the other support structure related content.
My understanding of the changes to the algorithm is that it has less to do with the physical support placement itself and more to do with the towers and interface between the support point and part. The change shouldn’t affect your placement - it’s just important that supports are placed or generated using the new V3 settings.