Great to hear you had a good time. That much wind makes it damn hard to even get steady, let alone handle the shooting. The next match you go to that’s calm will feel like heaven comparatively. No need for a sling. It will be in your way. Because the game of PRS is to build positional support (as opposed to unsupported sling shooting in high power, for example) a sling just imparts unwanted forces to the system which arent helpful. Check out the old balls inc system for a super low profile way to make carrying stuff around a little easier If you want a “carrying strap”.
You can go full weather station on your tripod or just mount your ranging binos on there and let your kestrel live in a tripod pouch, your backpack top, or even dangling from the apex of your tripod. It just needs to be somewhat out in the weather and maybe not laying on something baking in the sun. Some guys get a network of devices all connected together: kestrel, rangefinder, binos, scope, phone, heads up display, etc. I’ve even seen a guy bring a 15ft, tripod mounted, wind meter pole deal that supposedly measured wind with a Doppler scanner and reported it back to an app. All that is more than I want to manage but to each his own. For a known range match wherein most guys will have a rangefinder if a distance needs to be checked, just binos and a kestrel would be enough.
As for target acquisition and dealing with the sea of targets. Make sure you are at an appropriate magnification level with your scope. Maybe 15x. It will give you more visual cues. Practice watching your target all the way through recoil. The scope has to stay where you can see the target until the bullet hits. Get some SMALL ”targets” out a window in your yard or pick a rock across the valley…whatever you have and practice with a chair or step ladder. Put down a bag, put down the rifle, get behind the gun, point it at the “target” drop into the scope…the selected “target“ should be in the view. No need for ammo or even running the bolt. When you do live fire, stop using a bench or shooting prone at all.