Thanks for starting this thread, Eric.
Great to see you're both having fun (despite such colorful descriptions of the challenges!).
• I'd definitely echo the need for sensible course management: hitting fairways and prioritizing GIR are key.
• Lower your expectations: imagine you're playing in a U.S. or British Open (after all, these are Major championship courses). The rough and the bunkers are going to be brutal, so avoid them at all costs, just like the pros. Treat par as a great score, and if you're patient and hitting greens, some birdies will come.
• That said, attack the par 3s whenever possible. Make the most of your perfect lie with the tee.
• Learn the fairways of the course you're playing: it's no longer OK just to pull out the 'big dog' and hit driver as far as you can. Play for the flattest areas, even if that means holding back 20 yards. After twice putting myself on the nasty downslope, sidehill lie on Kiawah #18, I've decided I can't reach the bottom of that hill, and I'm better off leaving a 200 yard approach where I've a better chance of making GIR.
• You can gain a measure of control with a sidehill lie by deliberately missing the ding against the slope, i.e. if the slope's going to take the ball left, miss the ding a little right. Woe betide you if you miss the ding with the slope (especially if the wind is also taking the ball that way; this is where you see the most extreme effects).
• Don't expect to master Unevens quickly... It's like going back to the beginning, learning a whole new game.
• Experiment with new shots around the greens. An uphill lie can mean you can use a Punch shot as if it were a Pitch.
• Oh... and putt your lights out! Your scoring is now going to depend on great putting. But the good news is you'll frequently be so much further away from the pin, that your putting is bound to improve no end!
Above all, approach Unevens with an open mind, and (try to) have fun!