Pretty much.
2 x TE at 1/4 way point: This gets you back on track at the 1/2 way point. Note that the 'secon TE' is really the CA for the 1/2 way point. Once on track at the 1/2 way point the adjustment then needed to maintain track will be to remove the CA part of your off track correction.
If you're not on track at the 1/2 way point you could use 3 x TE to get back on track by the 3/4 way point. In this case the CA that will need to be removed once on track is 2 x TE. You could also do a 2 x TE to get resume track at the destination.
Don't forget you can always add TE + appropriate CA to arrive at a given point eg destination, or any other point you choose.