I'm teaching myself to play the alto recorder. Since I'm mostly interested in jazz, I have been trying to practice in all keys from the start.
My problem is with the right-hand technique for the low chromatic notes. I found some descriptions mentioning a wrist turning action, where one is supposed to turn one's wrist outward or upward; the fingers sliding to a position where they only cover a half-hole. That more or less worked for me, but I seem to get better results and less right-hand movement when lifting the finger tip to uncover half-holes.
For example, when playing from low F to low Ab, I lift my pinkie and straighten my third finger, such that the tip of it lifts a little and doesn't cover the other half-hole anymore. While the wrist movement is similar to the supposedly proper technique, in this way I manage to keep my pinky closer to its hole, and it seems to minimize movement in general. Also, I find it easier to slur these and similar movements (e.g. Bb to Ab) – there is less chance of squeaking and bending, compared to when I do the sliding finger motion.
Since I don't have a recorder teacher, I'd like to know whether such a technique is acceptable. I suppose the movement might be considered to lead to a less natural finger position or more tension, but it actually feels quite comfortable to me.
Should I go on practicing this technique, or should I stop using it?