Alright folks, some of you prefer to use older versions of Sigma Photo Pro, and I might add that I saved 3.3 for my monochrome work as well. And I’m not super friend with new higher ISO-messy-noise reduction so It might be a good idea good to have both versions installed.
Arvo Jägel has created a Sigma related hub with lots of useful information. Also, if someone has the old SPP 2.x for Mac around, please send me a message! Thanks.