Frank II, Thank you, I have read that several times over.
Dublin Airport suggests 3-3.5 hours for connecting to the USA as you have to go through immigration/customs as well as TSA run security.
.The time suggestions you quote are exactly the same for “self connecting” psgrs that have to claim their bags and check in for their second, separately ticketed, flight. So how does that make any sense? It would be much faster to clear customs once landed in the US! Further, the PDF illustrating the process does not indicate that connecting psgrs have to go thru immigration/customs plus TSA. The US Preclearance in 3 easy steps section describes a typical TSA screening, i.e. show boarding pass, shoes off, show passport, etc.
The page describing the Preclearance FACILITY is written both for psgrs originating their trip in DUB as well as transiting, so it’s confusing. I hadn’t actually seen the pdf before, so with that and after reading everything few more times, I think it’s safe to say we won’t be claiming and re-checking our bags in Dublin.
I’m still uncertain about the time however and hoping someone that’s gone thru this scenario will share their experience.