I've just relistened to the very same Savoy 20 bit lp facimile that you have Bertrand. (Well, I skipped all the Fuller solos, doesn't do much for me lately).
I have not even the very smallest doubt that Lateef is on all tracks. Whoever claimed he and Lee did not record together at the very least missed this date.
I also believe that Lee is where the enclosed discography with the cd says he is. (Tracks 1-4, 6 and 7).
Love Judyful, my favorite track on all the Savoy Fuller dates. Love how Van Gelder goosed the microphone preamp for Lateef's solo and makes it pop out so aggressively. Sure sounds like Lee here to me, not like Harden.
Here's my opinion:
Lee and Yusef on: Accident (both takes), Darryl's Minor (both takes), Be Back Ta-Reckla, and Judyful. Harden and Lateef on both takes of New Date.