...but why not wait until the course is completed. I'm nearly there.
Because you'll lean it a lot faster actually using it.
I have been monitoring quite a lot of QSOs on the air, but I can't copy characters that I don't even know yet. The best I can do is just skip over them and concentrate on the ones that I've already learned. That is a (major) drawback with the Koch method: it's basically "all or nothing." Anyway, not long to go now. Only a handful of characters remaining to learn, and the transmitter building project is nearly finished.
I'm scoring about 86 percent on the 32-character drills. Good enough to add a new character.
The 32 characters learned so far are: K, M, R, S, U, A, P, T, L, O, W, I, ., N, J, E, F, 0, Y, V, ,, G, 5, /, Q, 9, Z, H, 3, 8, B and ?.
Today I am adding the 33rd character which is "4" or di-di-di-di-dah.
73 de Martin, KB1WSY