Well I pulled the Fisher 86 GT (182) first time this season. I have around 200 days on these and about 40 on the Fisher 76mm CURV (182.) The fun comes at different ends of the turn radius btwn these 2 skis. The 86's at 18m w a less radical side cut are easier to confidently ski at speed vs the 76. They shine w med and longer radius turns. I agree w the assessment about off piste.
The 76 otoh is a slasher - the radical sidecut and narrow waist makes it extremely nimble so when you do find those patches of good snow it's easy to make a lot of turns. When the resort is crowded you can zip around at sufficiently high speeds to take advantage of the best snow available, w/out skiing too fast. It's probably a better soft bump ski than the 86.
I'm happy I own both, empty weekday at the opening bell pull the 86, holidays and weekends use the 76.