People who have medical issues are not what's in discussion here. You said that many PRO PLAYERS choose to place their heads off-line in order to avoid neck strain. Who are they? And where are the ones who tilt their heads also?
As far as those with medical issues, many have come to me with all types of medical issues. Our compromises always started with the feet position and those adjustments were always satisfactory. (This does not include grip hand issues of course.) I never had to recommend to anyone to place their head off-line or tilt it. And I've seen a lot. Maybe you should learn how to adjust a player's stance rather than take their head off the shot line.
You are continuing personal attacks, yet I'll respond, since you've made false facts also:
1) I am not "spinning" (your continued personal attack used to substitute for true facts), I am presenting facts of anatomy and reality.
2) "Matt's point is that due to the nature of the pool stance, many pros place their entire head off the shot line to avoid neck strain. He also advocates tilting your head." I wrote
neither thing nor do I ever teach head tilt or ever teach "head off the line to avoid neck strain". You may be confused since you recently balked when I suggested head off line as part of a teaching drill for aim and trust--not neck strain avoidance--so I'll let that go. Again, both my teaching and books and websites never advocate either false position above.
3) Another personal attack was "learn how to adjust a player's stance" -- I have helped hundreds of students, in person, adjust their stance. Just last week on a AZ thread I helped people adjust their stances to avoid, even cure, lower back pain.
4) I NEVER WROTE "many pros hurting". I wrote that many
students (who don't play five hours a day since their youth to accomodate a low, sometimes stretched pro stance) are getting hurt by "everyone square" since square is NOT meant for everyone, but for some. Then YOU WROTE "name a
pro" and I responded "Mike Sigel", whose hurt has been credited to needing to square his face against his unusual stance. You and I both ought to know our student's health profile if they play more casually than a pro and have any unusual stance positions.
Any normal person, who stands with feet and heels together erect, then steps forward with their left foot, then bends from the waist and or hips, and also stretches the left hand several feet in front of the right hand, develops a degree of torso angle, the head and neck then naturally move
with the torso and turn off the original squared position. SOME teachers then advocate squaring the face.
I
DO advocate squaring the face in the pool stance
IF it doesn't compromise aim (since as you know MANY PROS do NOT square their face when their head is on the shot line, their head remains rotated with the torso, not stretched against the torso) and IF it doesn't cause them to hurt. A 6'4" player with a big, wide stance, especially if their left foot is far from parallel to the shot line, whose head comes about 30 degrees rotated above the shot line NOT tilted, is going to be unhappy if YOU TELL ALL YOUR STUDENTS TO SQUARE.
My conclusion is you are picking a fight just to pick a fight. At least debate WHAT YOU TEACH, since I'm sure you don't tell ALL your students to square their face. You have no students who've played at an A or even a shortstop level for 20 years with a rotated head?