I am hoping to solicit some advice on a solid pre-round warm up routine to get in-sync and establish some tempo in my full swing prior to teeing off. My main problem of late is that I will feel "out of sync" and/or my tempo/rhythm will be off on the front nine, only to come around on the back nine such that my score on the back nine is almost always 2-4 strokes better than the front nine. It's almost as if it takes a minimum of nine holes for my body to remember how to hit a golf shot. I usually start out hitting big draws/pulls/hooks (in order of worst case scenario, ha) and by the time I hit the 10th or 11th hole my shots have straightened out to the point of being just a slight draw and much more under my control. Inevitably, I find that my problem is one of tempo and timing, with my body not being in sync with my arms during the swing. For whatever reason, it just takes 8-10 holes to get everything to sync up just right and I am wondering if there are not some good drills/warm up routines to do to tee off on the first hole with everything in sync.
Any advise would be helpful, both in terms of time spent warming up, drills, etc. While I am sure that it takes most amateurs some time to settle into their rounds, it seems unusual that it is taking me half my round. If I am wrong, let me know!
My current routine is as follows: show up at the range at least 1 hour prior to teeing off and hit approx 60-80 balls, working up from wedges to short irons, mid irons, long irons, and 3wood/driver. I spend about 20 min. putting before heading out. I do not do any drills really, just try to focus on getting comfortable swinging each club and try to fine tune my feel. Obviously, this is not working.