You may already be aware, but the beacon you have transmits on both 406 and 121.5 MHz which is the best option. Some of the 'personal beacons' only transmit on 121.5 MHz. To be fair 121.5 MHz is adequate for the great majority of locations on the land surface of the globe, so unless you are mid ocean somewhere and not under commercial or military flight paths the 121.5 MHz will be adequate.
I triggered my 406/121.5 MHz Epirb when I got caught in the Caribbean in the effects of a Sub Tropical Storm called Andrea. Leaving out the gory details, exhausted, I stuffed my Gaff Cutter onto a Bahama's reef and abandoned her after triggering the Epirb.
US Coast Guard came out from San Juan, Puerto Rico and snatched me off the reef and took me to the Turks and Caicos Islands. The Coast Guard told me it was 40 minutes from the time I triggered the Epirb to the time they located me on the reef and the Rescue Swimmer Crewman came down on a wire with the stretcher.
Just a thought...and I'm sure you will anyway, If you are going to wild and lonely places where the Beacon may be used, let Falmouth Coast Guard know a rough itinerary, ie: locations and timings.
I wrote to them from Gibraltar letting them know I was going Trans Atlantic single handed, and that I would be sculling about in the Caribbean from The Leeward Islands to Puerto Rico on particular (approximate) dates.
When I got back to UK eventually, I went to see HM Coast Guard at Falmouth to say thanks. They said as soon as my signal went off, they simply looked the details and itinerary up on their screen and telephoned US Coast Guard in Puerto Rico because they knew it was...not one of many thousands of false alarms they get every year.
Locator Beacons are good kit, I hope you never have to use it..