well the 1-5-5 is a heavy blitz package, i mean it has the same basic coverages, cover 1, 2, 3, 4, and alot of zone blitzes. try running it right up the gut or like bigbang said, tosses and pitches work, try running some play action. also, run 4-5 wide set and switch the 2 closet recievers to you on slants to the inside. if its a blitz or gonna be set up well.