Well no matter what check-in method I use I'm going to get the SSSS's due to what looks like one-way tickets.

As for the F class or NRT comment, I'd have to change the bar code & they would figure all that out at the gate because I have no PNR to match my BP.

Since all secuity screening is now right after check-in and all their trained eyes are looking for are the SSSS's, if that wasn't there I'd have the same random odds of being subjected to extra searches there as every other passenger.

I'm still not saying it's something that I would do, but I haven't heard anyone comment on the legality which most interests my curiousity.