Just a quick point on belt vs chain drive...
At the end of the 2011 season I rode in the spring on my '11 Pro and blew up my chain and gears. We were jumping in heavy slushy snow. I thought my track was ratcheting but I lost some teeth on the top gear. I lost all the oil when we tore it down on the trail. That sled rode another 20 miles with no oil on three teeth! Finally it was too hot and all the teeth went. Polaris covered new gears and chain but made me pay for the oil.
My point is that I would have much rather lost a belt. I wouldn't have had the heat issue. If the cogs let loose I likely would have been able to get the sled up to speed and cruised out. If someone had a belt at the truck they could have gone back and picked it up. I like the progress of the belt even with the growing pains.
EXACTLY!!!
Your chain situation could of easily gotten worse as well trying to ride it out. Wedge some parts and break the case. Your talking some hours to repair now not just minutes to change belt.