We did a 1-day hike and summitted yesterday (10/10). We left at 4am and was back to the parking lot by 530pm. The entire day was gorgeous and we had a 30 minute lunch at the summit. Light winds and clear skies! Trail is in great condition. About 15 foot stretch of ice at the cables on the 99 switchbacks - but you can easily get around it. No need for crampons. Wind picked up in the afternoon. Overall amazing day.
We took Altitude RX pills 24 hours before hiking (and through the duration) and did one acclimation hike to Lone Pine Lake the day we arrived (10/9). Other than that no other hikes at altitude. Everything went into slow motion above 13.5k ft. But no headaches or nausea.
A big thanks to everyone for updating trail conditions leading into our hike!