Wished I bookmarked a post (Prizm II)

Not sure which forum I was reading a post from (should of bookmarked it) about a Prizm II. Someone posted that hunting with it with no discrimination it would detect deeper. The thing that caught my eye was he said - and I know of other ways to increase performace, will post more later stay tuned. So I am guessing maybe some kind of mod that might be done to increase performance with the Prizm??? I was wondering if anyone know where this post was or can say or not if one can mod the detector or not. Thanks! Steve.