Quite possibly. It is a bit tiring, yeah..
I am refreshing my knowledge sort of I guess... but the stuff is like the real basics so I apply them whenever I play music anyway soo yeah..
But I am using it to my advantage! It's helping me to learn improvisation (before I could only play something if I had the sheet of music in front of me) and learning to play more in a group, so it is good, just, yeah, it's just the theory side of it that I already know.