I think it is safe to say the use of 121.5 and 243.0 for homing purposes by the USCG is a thing of the past now and they are going to SAT Epirb kit only.
As there is a lot of military flying in the part of the Oggin I sail on....I retain a dual freq Sarbe in my vest along with a GPS equipped DSC capable portable Marine VHF. That gives me all three methods of hollering for help should I go bobbing about.