The Taks are quite nice, I used to own a FS102. An outstanding performer but they are a bit heavy for their respective apertures. I don't know the specs, but it would not surprise me if the Star12 weighed the same or even somewhat less than the 102.
yes, an FS128 would out-perform the Star 12 being larger, but the Star 12 OTAs are remarkably lightweight - only 11 pounds. So it's a little easier to mount & transport. Only one pound heavier than a FS102.
I'm hoping the new Tak 100mm doublet could be a sign of things to come - maybe we'll get to see another 5 or 6 inch FL doublet from them, that would be awesome. Not everyone wants to image, these lighter scopes are my favorite (as a visual observer)