I'm 5'10", 170 lbs, advanced. I demo'd the Rustler 9's in 2018, and they were a lot of fun on everything from firm AM groomers through deep soft corn. Playful, responsive, held an edge well, felt great at any speed I care to travel... I very nearly bought them on the spot.
Harder-charging skis like the Monster 88 take more energy than I want to have to constantly expend all day long, and I suspect that fighting them would have hindered my skills development. I think you made the right choice.
Thanks, this makes me even more hyped for the upcoming season!