Excellent info guys, thanks!
I got confused with all the talk of the Super taks, SMC taks and their coating and reviews of an older regular takumar which showed some pretty serious CA from what I have seen in some scenarios. I put two and two together, and incorrectly thought it was the coatings. I knew coatings reduced flare and not CA. Correlation is not causation however so doh, I fail.
I am pleased to hear it has a single coating, I had thought the Super tak referenced to it being coated but it actually represents a different more modern aperture design and different optical configuration compared to the preset 18 blade aperture version. I am hoping the harsh bokeh photos I saw were not from the 18 bladed design, i'll see once it arrives and I get some test shots done.
Once I have the lens in my hand I would've noticed the color cast from the coating, but it hasn't arrived yet.
Speaking of coatings, If I had an Pentax-M SMC 50mm F1.7 would a diluted solution of vinegar damage the coating for removing fungus from an internal element?