Switch bags? Like me, you'll say never again. Omnilope is a stellar, pack flat, play huge miracle. The concept is deceptively simple and yet entirely undetectable. No clue work needed, you simply always know what they chose, in spite of the fact that everyone can very clearly see all the many choices in the envelope window as the effect begins. Plus, it's triple blind, as neither the spectator or you or the audience sees what's chosen from the envelope until after the psychic reveal. Plus, as always with Jay's stuff, there are multiple, actually, ENDLESS possibilities with Omnilope. No stooges or spies either. Chalk up another winning score for Jay. Omnilope is a steal of a buy for any mentalist or magician who dabbles in mentalism to round out their sets.