Owies!!!
I finally did my xM1 install. That’s 4 of 4. For starters, it’s really quite shallow, lol. I might’ve gotten it TOO shallow in fact, but I guess only time and healing will tell. I guess I didn’t realize this was ALSO a 3mm, lol.
Second, I had to make SEVEN attempts, lol. FUUUUUUU(dge).
It’s in P4 right which turned out to be a poor place since the skin is a wee bit tight there. Just hoping to hell that it is actually deep enough and doesn’t get rejected or anything else. There was SO. MUCH. BLOOD. Some places I pricked barely bled at all, some were like “I… think that was a vein.” (Not really that bad, just being dramatic - I’m safe, just a LOT of blood compared to the others especially in P0.)
Anyway, unless you’re doing Position 0 folk (WITH a smaller implant), please please please take my advice and DT’s, and do this right with a professional installer, or at least someone experienced who can do it for you.
Thanks so much to the wonderful community here, in particular @Pilgrimsmaster, @NiamhAstra, @Backpackingvet, and an honorary mention to @ODaily for helping me figure out my right from left. 
Now I’m off to figure out my next implants.