Shaved calipers
I have the Scrambler 850 with the shaved calipers, so far no problem and we have a lot of rocks here in the mountains. I'm not sure I would want to recommend this but I have been in extreme conditions, one time (at band camp LOL) I was on trail that was nothing but rocks for 26 miles!
If you look at your calipers you will see 2 ribs or bumps on the top and that is all that needs to be removed.
I did put a set of 27" paddles on and they are to close to the rear fenders and the paddles will hit.
At Glamis I ride with a fast group and on long fast rides jumping from one bowl into another my Scrambler would overheat, I solved this by replacing the coolant with "Water Wetter"
If possible go with spun aluminum wheels, the cool looking cast wheels rob a lot of power.
I excited because I have had a deposit on a Scrambler 1K since it was introduced and it's suppose to be in today.
I'm hoping that since it now has 4 calipers that it stops the chatter when braking hard and that the calipers are smaller so I don't have to shave them.
The Scrambler is awesome in the dunes.