I HATED the rubber dam in d-school for restorative where it was mandated that you'd isolate 1 tooth past the midline in the arch you were working on (for example if I was doing an occlussal on #20 I'd have to isolate from #18 to #25).
Now in private practice where I can isolate as much(or as little) as I need, combined with a second set of hand who knows what she's doing (my assistant), I LOVE the dam😍😍😍 And *most* pateints after having treatment done with the dam on the 1st time will prefer it to rubber dam free restorative treatment(even gaggers).
BTW, for most rubber dams placed intra-orally the only lube you'll need is saliva, so save the K-Y for other things😉😀😆