I would like to try using an excluder to see how it works for me and would appreciate your feedback.

Equipment is all 8 frame mediums. If you have 4 meduims on a hive would you place the excluder on top of box 2 or 3?

I have read somewhere that you can put it on top of 2 box and regularly pull capped brood from 1 and 2, put in 3, replace with comb or foundation. Your thoughts?