Depth of bends in "Bending - Study 4"

Hi David,

I just finished my LOA-4 studies and I'm starting level 5.

I just watched videos for "Bending - Study 4". Notation for the exercise contains many half-step bends 4' (A#), 6' (F), 1' (A#) but video shows you taking those bends to the bottom (according to my tuner).

I've noticed similar thing in the study songs like Gary Blues - bends go all the way to the bottom in the recordings.

On 4' and 6' I can go 40-50 cents below the correct pitch on my A harmonica and even deeper on a G harmonica.

That's a bit confusing. Am I supposed to go to the bottom or aim for the correct pitch at this level of the study?

I'm worried that I'll develop habit of playing out of tune and I read all those posts about hitting bends in pitch being so important to be a good harp player.

Kai.