I'm with @Rawroots, except gifted on my 10th birthday. I soon discovered that one should never, ever, shoot at a target that's pinned to a dart board. I didn't shoot my eye out - I shot my thigh out.
Am hoping to use this new butt that just arrived from Spain, but I have to get over a case of bronchitis before I can go back to shooting outside in freezing temps.
Just did a SW update on mine via the Garmin Express app, easy to use. The only issue I have with the Xero so far is that the screen can be a bit hard to read depending on the angle and ambient light.
My self-imposed rule, now that I'm retired, is that if I want another gun, I have to sell one that I already have. I recently bought a Huben K1 in .25 cal and am selling my Taipan Vet Tactical (it's on consignment at New England Airguns if anyone is interested).