Last week I climbed this route and gained Timpanogos Ridge but didn't have enough time to climb to the true summit, which I'm guessing would take another 3-4 hours to gain. I'd love to give it a try someday but from the parking lot I'd give myself two days for the climb. The 50 ft. buttress to gain Timpanogos Ridge was probably 3rd class scrambling in my opinion and it certainly was possible without a rope. I'd say keep an eye out for rattlesnakes in the upper part of slide canyon though. I wasn't expecting them and came pretty close to almost stepping on one, although it was the only one I saw. Scenic hike though, there are some beautiful waterfalls in the canyon.
Thanks for the update! My ratings were based on observations since I never finished the buttress, so I appreciate the info. I'll update the route page.
I just got back from attempting to climb to the true summit from Slide Canyon but I wasn't able to make it. I camped on the upper portion of Sundance Ridge and made an attempt for the summit the next morning. I ended up making it to the westernmost part of the southern portion of Timpanogos Ridge, but was not able to make it any further. From here much of the ridge becomes very narrow and dangerously covered in scree, with steep exposure on both sides. Also, along the ridge there are a few steep cliff drops and rises that I don't think could be climbed without technical gear. I'll post some pics that I took of the ridge to give an idea of what it was like. Hope this helps!
Thank you for the additional info. I have been waiting to update the route page to get some more info on the traverse to the true summit. I was actually considering trying myself, but you got to it first! Please post any picutres you have, I'll put them on the route page to complete the update and fully illustrate the terrain.
There are ticks.