Same here...I hunt mostly in SD's Harding County for antelope but shot one in Pennington County last fall and they've all been delicious. In fact, my wife prefers antelope to venison (whitetail OR mule deer). What I've learned over the years is this:
1: Field dressing/meat care is everything. Get the hide off of it immediately, and get the meat cool. Antelope have some of the thickest fur I've ever seen and it insulates so well it's almost impossible to get it cooled off properly with the hide on it. One of the biggest challenges of hunting antelope in SD is that the season is in October and +80F days can really make it challenging to get your meat cooled down quickly.
2: Don't shoot antelope that have been run hard. As mentioned earlier, the adrenaline and lactic acid will adversely affect the taste of the meat. Antelope aren't hard to kill if you make a decent shot. The vast majority I've shot have dropped in their tracks.
3: Don't overdo the seasoning. The antelope in SD do eat their fair share of sage, but it depends on where you're hunting. Overcooking any game animal is bad, but it seems like antelope in particular needs to be cooked as rare as you care to eat it. It's a unique flavor and has become one of our favorites over the years.
This was one of the backstraps from this year's speed goat. Bacon wrapped, seasoned with salt and pepper, and cooked on the Traeger. It was fantastic!
View attachment 186289