Saddle, shorts or lube?

[KnottedYet]

I'm also having a problem with saddle pain--not on my vulva, but on the inside of my left sitz bone. I've tried 3 different saddles, different seat positions (slightly forward, slightly tipped down), and different shorts, and it's getting better, but it's not yet great. My old squishy serfa cutout on my hybrid bike feels just fine, however!

Asymmetry is always fun to deal with...

Freebie Option - try rotating the saddle, pointing the nose slightly left or slightly right. Depending on why that left sitz is getting wolloped, it could be either direction, so I'd just try both. You'll know in a hurry if you make it worse!

Time and Tools Option - move the squishy saddle (which probably gives under the wolloping side) to every bike you ride

$100 Option - buy another squishy Serfas saddle or two if the Serfas is perfect on every bike, or buy a "pure" leather saddle that will gradually shape itself to your asymmetrical heinie/hip action.

(of course, this is assuming you've already done all your measurements and the saddles you are on truly fit, and the problem isn't just that the saddles you've been using are a touch narrow so your body has been shifting a bit to the left and putting all your weight on the right sitz, leaving your left to grind against the saddle edge. We often see that, where a woman can really only get one sitz completely supported on a narrow perch while riding, so the body chooses one and leaves the other flapping in the breeze. ALWAYS MEASURE FIRST!)