So it seems the folks at payday have gotten wind that us riders use them as a cheap energy source... I was in well.. let's just say- a "large conglomerate" - the other day and I came across the "payday pro". As near as I can tell they just added protein to it, but I didn't compare the two side by side. Of course they are double the price of an ordinary pay day. When I saw it I had to laugh. It seems everyone wants in on the energy bar game.