Didn't know if I could mention it by name, but we know who. Many people share this experience.They promise a check instead of credit to use. Send in my clubs 2 months ago. They were accepted and approved 6 weeks ago. I emailed about the check 2 weeks ago. "Oh, it's on the way tomorrow". I will call tomorrow. However, they either have a cash flow problem, or they wait to sell your clubs before paying you out. Said to see because the umbrella companies are awesome. Just be honest and tell me it may take two months
Here in USA, the KBS Tour S-flex shafts go for about $27 each new. If you get AP2 714 model, a 4-PW (?) reshaft would require $189 + tax to get shafts. Add $15 per club for shaft swap, and $10 per for new grips, and it's about $365 + tax.
The KBS Tour stiff would be a few grams lighter and slightly stiffer than the S300 which often come as stock for the AP2.
OTH is on target, consider this too.
I had a big long post going and lost it.
The game of golf has only one set of rules per continent. The equipment used is well defined as far as legal, or illegal.
The other sports you mentioned are dealing more with different age groups, physical sizes, and skill levels. Sure, golf has players of all ages, sizes, and skill levels too. Golf also has one set of rules, and one playing field with differences in length. Difference is baseball has tee ball. Football has different leagues based on age groups, and it's the same for basketball. These sports cater to the needs of their players based on their age groups, and skill levels. This also includes the playing fields, and equipment they use. So in that respect I have no problem with what other sports are doing.
2/23: Feeling encouraged. I think I've got the (worse than usual) weight-shift/head movement mystery solved, or at least "identified" with a much better understanding of it (and a confirmation that it's always been there ).
Getting better at the process I think...(1) noticing a problem but not knowing the why, (2) Slowing down and checking keys 1-3, and (3) "going back to my first lesson" so to speak by reviewing old video and my swing posts, and slowly "backing up" from the problem to try and identify the (chain of) cause(s).
Today's practice: 10 minutes of good ol' wall drill, with original focus of getting my right hip away from the wall but with added attention paid to my upper body and (actually getting some) secondary axis tilt. Several slow and medium-speed reps of this pausing for feel and thinking about and practicing how I'd transition into the downswing.
Then 6-8 minutes outside... Just two "reps" of 3-4 minutes slow-motion back- and downswings (hip, axis tilt, weight shift (and resulting proper better club path ) and then an easy-swing full shot with my 56o. So I only hit two shots and both were perfect, high draws.