I used East Rockaway inlet a few times last year with no issues, same goes for Fire Island inlet. I use Jones inlet all the time with no problems. Just follow the markers. The only inlet on the south shore I have never used is Moriches inlet. Based on conversations and stories I personally would avoid that one, however both the inlet and state channel were dredged not long ago so perhaps it is more user friendly now. Once inside any of the inlets mind the channel and your depth gauge, they don’t calm the Great South Bay a “sandbox” for no reason.