I hate to say it, but the only Tak I ever owned - an FS60 - I disliked immensely. The CA on even medium mag stars was REALLY noticeable, let alone on planets. I was very disappointed, though Tak never claimed it to be super corrected (I found it WORSE than a SW achromat I once had). Beautifully made, superb focus (once I got enough damned doodads and adapters to get it to focus!), but the CA spooked me big time. I found the finder better corrected
I note NO CA in my FL102S. Nada, zilch, zip. And that's just a high performance fluorite doublet! And it performs beautifully photographically, no doubt because of it's remarkable Strehl ratio.
I have plans for a WO Megrez... be interesting comparisons...