The drop-shot rig is a finesse fishing technique that has become popular among bass anglers in the USA and has also proven effective for perch in the UK. It is particularly useful when traditional baits fail. To set up, use light line on a spinning rod, tie a small hook 18 inches above the line using a Palomar knot, and add a weight at the end. Small baits like worms or grubs work best, and the rig should be lowered to the bottom while gently wiggling the lure. Recognizing bites and reeling in gently are crucial. Experiment with techniques and consider using a swivel for better flexibility.