The soggy noodles I was experiencing was traced to the prior firmware updates on both of my Form 2’s. The latest firmware seems to have fixed that issue.
The waxiness is definitely something that seems to be surface related. The surface of Tough 2K looks like light grey instead of the dark grey it should be. If I rub my thumb lightly on the part after washing and rinsing, I can get marbles to form which stick to the surface of the part and expose the darker plastic underneath.
While I can cure a part like that, and it comes out fine after being cured, the finishing process becomes more difficult. IPA drys within a day and can be handled and sanded without issue prior to a full cure. While I can wet sanding uncured TPM washed parts, and it sort of works, if any marbles are created and cured it becomes difficult to remove those marbles afterwards and makes the surface very rough.
The reason I like to sand before curing is because of support cleanup. It is far quicker for me to remove support marks when the item is not cured. With IPA it was wash, dry, wet sand, and cure. With TPM, it is wash - try not to handle with bare hands or bump parts together, dry, cure, and wet sand for 3x as long. In my workflow, sanding post cure tends to damage edges and other geometric features while trying to get the support nubs sanded off.
With TPM, the overall tackiness of the surface after washing is the big issue for me. I like your idea of post washing in IPA, but the point of trying TPM was to eliminate IPA from my workflow. I’ll try dunking the parts in some IPA after washing and see what that does. I was kind of hoping I could eliminate IPA altogether.