Put about 30 miles on my 155 2.75 9R today. All I can say is that it's worth the wait and all the BS. It truly lives up to the hype. Way more so than the Boost. It hits harder than Ike Turner on a 3 day bender. It literally flys out of the hole digging a hole everytime you pin it on the trail. Anyone who can't bowtie and gets this sled, will easily learn how to bowtie. I have never seen an engine grab RPMs as fast as this motor does. It goes from 2000 rpm to 8000 rpm in a second. The high elevation kit is 72s which I think is way to lite. I had 76s in mine today at 4500-5000 and it was holding 8550 to 8600 on long pulls. It was making an jaw dropping 46-47 mph track speed. Our snow isn't that great so it might have helped the numbers but that is the kind of numbers I see on my Boost. Luckily we had a 850 Matryx Slash Pro with identical set up all the way around to jump back and forth from. I would say the difference between the 850 and 9R is the difference between a 650 and an 850. It's that good. Old Rusty's TCCLGBQT sled is no longer going to be the king of his little hill. The 9R is for real. I guarantee when you guys get yours, you are going to forget all about this BS Polaris has been putting you through.
On a side note I tried riding the brake for a few seconds on the trail and it goes into a stupid limp mode (max 7k rpm) and a full red screen until you turn the sled off and restart. I rode technical trees all day and rode the trails with my finger on the brake all day. Not a single issue. Just like I had assumed this brake thing is not going to affect the people who have half a brain and understand the difference between finger on the brake and finger holding the brake.
On a side note I tried riding the brake for a few seconds on the trail and it goes into a stupid limp mode (max 7k rpm) and a full red screen until you turn the sled off and restart. I rode technical trees all day and rode the trails with my finger on the brake all day. Not a single issue. Just like I had assumed this brake thing is not going to affect the people who have half a brain and understand the difference between finger on the brake and finger holding the brake.