Just a FYI. There isn't a gap between the simplicity and the Euforia. The Euforia tapers in at the base.
Are the internals of that an exact copy of the Penelope? I ask because if they are then you can adjust the center post when you assemble it (within a mm or two). So you can have a gap or not, whichever you prefer
Speaking of gaps, I just got a used Spheroid today. It mounts flush with no gap . . . but that's because the center pin on it isn't even making contact
It's a perfect fit, otherwise. I'm thinking the previous owner may have modified it to fit their mods, so I've ordered a replacement 510 center pin so I can use it on my Simplicity. Works great on other mods, though, I'll just have to wait a little longer before I can use it on my Simplicity

