I have an xNT and xEM installed in P0 on each hand (the webbing between thumb and and index reader) and a couple of Siefly locks. I’ve found that first tapping the keypad to activate it also seems to power the NFC reader and I get better reads then if I just smash my hand against the lock. It sill takes a couple of tries sometimes though.
I recently had NExT v2 installed in P4, thinking it would be easier to present to both HID readers and my door locks. I’ve found it to actually be harder. I get better reads from the individual P0 implants than I do from the NExT v2 for either HF or LF readers. The NExT v2 still works, but it is less consistent.