The EZP, for me, has not worked out very well. I found it a little too leaky for my anatomy so I could not use it reliably as an STP device. Also, I never got used to the way it packs! It is hollow, out of functional necessity, so it just seems to squish flat in my pants and looks like a big wrinkle. It moved around too much while being active and sometimes worked its way around to the side of my fairly tight briefs, so for me, not much success. I have the Reelmagik 3inch basic packer in the soft style and it is great. Stays right where I want it to be and looks pretty real in my swimsuit, running shorts, and everyday clothes. Of all my packers, it is my favorite. I also used the Reelmagik classic 4.5 inch as well, but it tended to chafe a little bit inside my thighs and rode up a little high. I am patiently waiting for the release of their lightweight models! I, too, am still looking for the true answer to the STP/packer dilemma. Thankfully I do not use very many public restrooms, so the STP is less of a big deal, and I usually use the pStyle at home or when traveling, hiking, etc. Good luck with your process!