I did the zwifting again last night. I have discovered that even though I really suck at it, sustained climbs are actually preferable to lots of short punchy hills. You get to have solid blocks of suffering.
I did the mountain route, but skipped the radio tower climb which is just too much at my current watts/kg. As it is, I am only averaging like 6-7 mph on the climbs. But I still shaved a few minutes off of my first attempt at the climb. I'm WAY down on the rankings, but it's also kind of silly to look at the rankings on Zwift when people's setups are so questionable.