It's all about the angle that fits your body to obtain good STP function. I actually used the REI camping STP unit as a quick, cheaper, angle test and then tried to match it with Axolom's selection.
Pet peeve about Axolom pics...inconsistent imaging to demonstrate angle of receptacle and outlet source.....FYI the bigger the difference between the receptacle and "your" penis the more likely you are to have accidents. Simple law of gravity.
I’ll start with really my only complaint about this prosthetic (and this is just my opinion): I don’t like the balls. I had the noodie first, and I loved it, just wanted something a bit bigger for playing and a little more coverage when clearing the fly. I had no issues with the balls on the noodie, they’re a big flatter and look more natural in my opinion. The balls on the miper tend to stick out and are a bit hard. If I said down and my pants ride up, you see hard protruding balls impression in my pants. Same if I crouch down, they stick out. I’ve tried this for play, it worked great with the rod. I’m doing pretty well with the peeing aspect. It’s solely the balls for me. I hope one day yall can incorporate movable soft balls, like what’s in the echo.