Ive heard about that an actually my calorie calculator i use has a setting that does a zigzag effect for the week

Calorie Calculator - Daily Caloric Needs

just input your information the calculate then click the link 7 day calorie cycle (zig-zag). i dont do a real zig zag at this point but i try to put in one or two days a week where i eat a little more so try and shift things. so far ive not needed to adjust my calories so im not sure exactly on how effective it is.