Thread resurrection... I'd like to hear some more conversation from users of the 64 series. I purchased a 64st to keep on bike as backup to 478. I'm always leading trips and it would be a bummer to go blind on the trail. I like that it will hold a ton of tracks for my most common rides and 5000 waypoints. Also the small size and it's reception/accuracy with the additional GLONASS is impressive. I see references to the usb power connection not being waterproof in use - can someone point me at some sources for this info? I've googled and can't find any documented cases of failures from water intrusion thru power connection of 62/64. Regarding powering the 64 on the bike, I bought a Garmin hardwire cord that has the 5v transformer in line and it looks solid. The usb plug is oversized and matched to the size of the hole on the 64 so there is no slop to put stress on the usb connector. I also bought a third party hardwire cord that also fits the socket snugly. Have people had problems with vibration damaging the usb socket with these cords or could it be a case of using a standard usb cord that puts all the stress on the socket? I did the mod to the little switch in the battery compartment so my Duracell NIMH charge in the unit from the usb. So far I like the unit. I still need to get City Navigator installed so it could navigate in a pinch. .