Man golf is so mental. The one thing I’ve learned is warm up is just warm up. Almost has zero effect on how I actually play. I’ve hit it pure warming up and slopped it up on the course, and hit it terribly and scored. Yesterday I literally shanked 7 out of 10 irons off of mats (hate em). I put em down, hit some drivers to get the feel of a release and go to the first tee. Result? 5 birdies, 1 over 73. Weird game.
One of my main playing partners and I were discussing the impact of warmups as we have his member guest coming up and we like to set a morning plan/routine. It's a big tournament and each day is a shotgun start so guys will be fighting for the range. My playing partner is a scratch golfer and practices a lot so this is a topic he has looked it. We both realized that each of us have significantly cut down our range time before our rounds. The general consensus we came up with - and this likely pertains to us increasing in age as we are both 41 now - is that the most important thing is that we literally warm our bodies up before the round. Both of us tend to have back tightness issues (with age and dwindling core strengths but trying to maintain a higher swing speeds this is huge) so this upcoming tournament we are going to place much more emphasis on physically feeling good on the first tee as opposed to hitting a bunch of balls on the range. This means cold plunge, hot tub, stretching, foam rolling, swinging with an Orange Whip, etc. pre-round and just hitting a few balls on his sim then rolling to the course maybe 20-30 minutes before tee time.
For me, a lot of my prep is still mental so I focus on ensuring that I'm comfortable mentally when I strike my first shot. This means getting whatever pre-round supplement I intend to take (been
doing Magic Mind and Diald as of late), getting some alcohol in me if I'm drinking that day, and, for golf warmup, just finding the face solidly a few shots in a roll, hitting some clean chips, and rolling a few putts to check green speeds that day. For me, this is probably the biggest notable difference because it just snowballs if I don't "feel right" on the first tee, make a bad score, then be in a bad spot mentally until a make a good shot or a birdie or whatever and at that point the round is probably lost.
I am still somewhat torn on the merit of Nicklaus's point about warmups which is to determine which shots (e.g. cut is working but draw isn't) you have going on particular day and then to own that shot. That seems logical to me. But I'm now unconvinced whether it makes sense. At my home course, one of the few negatives is that we do not have a range but, instead, just a hitting net and turf. So, it's impossible to tell which direction you're going. Generally, I'll just hit a few five irons (the club I hit off our first tee) into the net until I find the face and move on. But, for big tournaments, I'll drive to the local range for a "regular" warmup. That said, I think my scores don't vary a whole bunch whether I hit at an actual range or not.