I'm just getting to know my 60Csx, but I'd sure like the Montana. I've had it two seasons and mostly use it for tracks. I like the buttons to page it with gloved hands, though.
I bought the 4 prong cord with a coax connector. I tapped into my battery tender/heated gear cord and ran it up front ziptied to the bars. Mine has never shut off and I left the batteries in. But I have to unplug it when stopped for the day, or the GPS will drain the bike battery.
My son raced the Mex 1k this spring with a 60cs not hard wired and it shut off periodically until the put something on the battery compartment.
Straight ahead and faster -Bo Weaver 1970
"There I was..." -Griffin Niner Three Hotel
"One day closer to a parade..." Jonny Gomes, spring training 2013