Frostbite, here's a trick for when its really cold. Take out plugs, turn one piston to tdc and put in a tablespoon or two of gas. Turn over and repeat to other cylinder. The gas will thin out the oil and pull much easier. Just carry a length of siphon line with you to steal a little out of tank if your not carrying a gas can.
As for electric start, yes their nice, but not sure if I'm willing to take on extra weight. It's not just a starter and battery. There's a ring gear, a battery box and hold down to keep it in place, a relay and heavy gauge wiring to get power to starter. Has to be 25 lbs plus. When its super cold, you'll probably be pulling by hand anyhow. I've seen new Polaris rental 800's where the starter couldn't turn them over when well below zero. (Unless you use my trick)
It don't matter what brand of sled you own, if its an 800 or bigger, its gonna pull hard. 600's pull easy:face-icon-small-hap:.....
Manufactures could make them pull easier if they would put larger recoils on them..... but that adds weight and we as consumers complain when our brand is one lb heavier then the competition.
Good thing about hard pulling sleds, is you don't have to worry about wife and kids riding your sled when your not home, lol. Good luck.