Two great things to know --- that your "no blade" multitool has gone through "well over 100 times" !! You clearly fly a lot. Anyway, this makes me more comfortable perhaps in taking mine on my next trip.

Ditto the TSA Pre thing --- I've got Nexus, which includes TSA Pre, so indeed that's "one less thing". Only useful on domestic flights, however. I don't fly a lot, but TSA Pre plus Global Entry (via whichever route you get them) are nice, the former for domestic, and the latter in coming back from overseas flights. I got mine via the Nexus approach because it was the cheapest option, plus it's a joint program with Canada and we do once in a great while drive into Canada, where access to the Nexus lane can sometimes save a fair bit of time.