Question about Rhino and T-Splines?

I am in the process of learning Rhino after several years of using SolidWorks and so far I REALLY enjoy rhino. My next step is to learn the T-Spline plug in so I am working on that…

Anyways, my questions is, do you people use Rhino NURBS modeling and T-Spline together or once you start a T-Spline object you go with it all the way?

Edit: if you have any resources to learn, please share! I really love David Schultze’s style of teaching but he doesn’t have any t-spline lessons.

TSplines are dead by now (Killed by AutoDesk in the same “right” way that Adobe killed the 3D PDF concept).

But since the whole idea was/is stunning I use TS frequently (lot’s of bugs mind exactly like the 3D PDF idea).

If memory serves well … there’s some thing under way in McNeal that combines nurbs and subdivision modeling (but maybe I’m wrong).

As @PeterFotiadis said, Autodesk will no longer develop new versions or sell the T-Splines for Rhino 6. It still works on Rhino 5 though. Autodesk has integrated T-Splines in Autodesk Fusion 360.
There is a similar plugin named Clayoo.
And while the SubD Object is under WIP. by Rhino itself, you’ll have to wait until Rhino 7 is released.