the south cluanie ridge was ok, we did it a few years ago now and like a lot of similar rides I doubt i’d ever repeat it. We went up from the inn, up the old tarmac road to the highest point then started carrying. There are some lovely sections on the way but essentially it was carry/push the ups, roll the downs. The final off was ok, long but nowhere near the best scotland has to offer. There are a ton of variants though, the trail into the glen to the south looks interesting.
Like others have said, if you walk or climb a lot you come across gems all the time. The tipping point is something like 70% rideable, 30% push i think, maybe less if the descent is spectacular but i guess it depends on you misery threshold. The liatach ben eighe descent is a good example of that…
On the other hand if you are off on a mission i always try and remember its about getting somewhere awesome, and maybe having a decent ride on the way.