Originally Posted by RFKFREAK
Yeah, I'm hoping that as I do it more, rotating past 80* will feel less uncomfortable as presumably my flexibility increases.
@Foursum Golf posted a really good drill to try that will help with your shoulder turn feeling and flexibility. Basically as follows:
1. Get into your setup stance with a 6-iron.
2. Keeping your body angle and alignment, place the 6-iron across your shoulders with your palms on the club facing forward.
3. Rotate your shoulders and hips as you would in your normal back swing and hold for 15 seconds. I focus on where the club is pointing and try to stretch it past a 90 degree turn.
4. Rotate forward as in your down swing to the equal position the opposite way and hold for 15 seconds. In this part, I also shift my weight and hips into impact position and point the club only the same line as step 3..
5. I added a next step. Rotate to your finish position (which is a limiter for me) and hold for 15 seconds. In this part, I focus on raising my belt level, having my chest aiming up and rotating my shoulders as far counter clockwise as I can. Basically mvmac's position in post 179 in this thread.
I have been doing this drill since @Foursum Golf posted it at least 3 times a week. I do three to five reps and have it as part of my workout warm up. It really has strengthened my back and made my shoulder turn and finish more comfortable. If it ever stops snowing, I will use this to loosen up before playing.
Give it a try.