After the first ST album named of course after Return to Forever's opus, and posted
here, they seem to have lost their way in my opinion with digital keys and drums, electronic, ethnic and new age importations in the second and third albums. Others will surely disagree though. I guess it's important for everyone to feel they've completed the discography, which can be found
here.
An example of the older guitar-based style (as on the ST) is Savannah Talk:
While the electronic digitalese is featured on tracks like this one, Reflexion au jour (note the digital harp):