Bubba, I tried the exact same exercise this weekend and found the distance of my G20 to be greater than the R9, I tried the 3w too and feel the G20 outperforms that also, I specifically play St Andrews in heavy wind setting too because I had heard that in headwinds the R9 outperforms the G20, I disagree..
I was basically trying to get my meter speeds a bit more in line as I have the R11 irons but I'll stay with the G's until L94, hire the TM and make a decision then..
The G20 Driver and 3w must be 2 of the most underrated clubs in this game..
I hired the burners a few weeks back before I got to 90, the R11's are in a different league imo but you may need to change your wedge set up, I now have 60yd/85yd and 105yd wedges with the PW coming in at 120, it's a good spread and works for me..
Either way, the new R11's will def take a week or so to get used to but they are the best irons available and trust me, I had my G20's dialled in to perfection and really struggled with the decision to go to the R's but now I can say. I'm glad I did..
Peace