Alright here we go.................when using a decoy get as close you can, preferably 200 yrds or closer before raising the decoy (get in his territory), and make sure the buck doesen't see you put it up. This can be tricky and I know it's been said many times before but no matter how flat the country looks there is usually more contour than one would think. Study the lay of the land and go for it! I have attempted many stalks that were not ideal conditions, but like I mentioned earlier, with antelope hunting you can get many stalks in a day. The more you try, the more you will learn. Oh, I almost forgot, make sure you invest in a good pair of knee pads and pick up a copy of Mike Eastman's book, Hunting Trophy Antelope..............and don't leave home without it!