Hmmmmkay 
That was just what I was about to write - I’m planning p0 on the right hand for the LF chip, and I would have to keep at least 5mm between the xEM and the xLED - keeping my hand relaxed, I’ve got about 2cm space between the bones, so this should be possible as long as the chips don’t migrate like crazy 
But for a third chip (in that case, the xSIID), it wouldn’t be enough space, so I’d put that into p0 on the left hand - is there any problem with the fact that my Titan is (hopefully) getting into my left hand as well? I’m planning to put it into some fingertip (hope it fits in there…), but when asleep or relaxed, my hand is usually half-closed, so the Titan will be relatively near to p0 or every other part of my hand… bad idea or not?