I’ve landed at a Ross in the past year, but with a 185. It’s really rough, and you never know when the Richardson Ground Squirrels have begun another excavation without posting a notam!

Getting to the guardhouse from the strip and then back to your airplane is a PIA at Ross.
I’d just go to Cutbank. Usually cordial officers there. Pavement. Fuel.
No experience at Whetstone.