Think of me as your bull$hit detector fred;
Just vspent 2 full days with 3 pro's 2 - 10 Doo's , 1 -11 Doo and 2 12 etecs, plus a few M Cats in 2 to 3 ft of fresh both days. The 10 and 11 Doo's and the Pro's used really close to the same amount of fuel, same type of riders, the 12's did use a bit less , but marginally at best, far from a deal breaker or maker either way. And your reliability issue seems only to be an really big issue on your keyboard, they have all performed well all year. Everybody had fun, ALL said the easiest by far to get unstauck was the Pro, ALL compared the amount of snow carried in the tunnel and chassis and agreed no tangible difference, ALL really liked the etec motor, the Pro'd used a bit more oil than the etec, but not enough to care about. All in all, they were all a hoot, either of them would be great choice. Pick your poison, but stop witht he so much better crap, its bull$hit and anyone who's not totally insecure about there choice will admit it.
both good sleds but ....... is my choice also.