In this hands-on episode of Bass Vault, veteran angler Bruce Callis Jr. shares his proven approach to targeting big bass during May's challenging conditions when heat, mayflies, and mosquitoes test angler endurance. The discussion breaks down his three-tier topwater strategy featuring SPRO frogs—from regular Bronzeye frogs for pad fishing to popping frogs for noise-making, plus walking baits, poppers, and buzzbaits for open water presentations. Bruce details his "contact sport" philosophy through Texas-rigged soft plastics, showcasing Missile Baits D Bombs, Chunky D's, and D Stroyers around laydowns with specific tungsten weight selections from 1/8 to 3/16 ounce. The episode covers his jig presentations using Ike's Mini Flip and Flip Out jigs with compact trailers, emphasizing how rod and line selection varies from 20-pound AbrazX for edges to 65-pound braided line for heavy cover. Concluding with his crankbait confidence in SPRO Fat John 60 and Little John 50 on fluorocarbon line for 5-foot shallows, this episode provides a complete tactical blueprint for finding and catching hawg bass during May's transitional period.