OK, I will wait for another update and try to explain it better if it persists past the next update.
But since then I noticed that when flying an ILS the dot or sperm without the tail gives you where to put your FPM to intercept and fly the cross, while in steerpoint mode when I try to put my FPM such that the tadpole is inside the FPM I overshoot. I Believe it should be guiding in the same way