I'm in almost the exact same boat so please can I add another question to this post ? it's not too far off topic
I have an eTrex Legend HCx and use a 2GB micro SD and looking to go to the eTrex 30
I travel all over the world and have plenty of " gmapsupp.img " for different countries, can I use these " gmapsupp.img " in the eTrex 30 ?
I've seen a few scare stories that I can't and it's locked with a garmin copy protect system ?
Or do I need gmapbmap.img and a gmaptz.img ?
Thanks