I also made the Ascent clock. It was a fun project to make. Unfortunately, I can't get it to run. Just a tad bit disappointed, but it's neat piece of art. Made mine out of BB plywood. I highly recommend making one.
Pegas #5 skip tooth will work, or a Pegas MG#5. Pine, in my opinion, is not suited for compound cutting. It seems to grab the blade and wander. I really like using poplar, butternut, and walnut for compound cutting. A slow feed is key.