We're having similar issues with our 8 month-old but not as many night wakings - just two usually, but they can be long. We have almost the same EASY as you, but his awake times are longer, so his afternoon nap is 2-4 p.m. (1.5-2 hrs) and he goes to bed after 7:00.
He never really acts tired during the day until nap time, and he goes down for his naps easily and sleeps great. He just wakes up between 10-11 p.m. and around 2 a.m. crying. I BF at the first wake up but try to get him settled at the next one without feeding - sometimes I end up BF again though.
We've wondered if he's really hungry, so we feed him a lot during the day - that may be helpful for you - to give him more solids or push the last meal a little later. He doesn't spit up, and he will always eat. He's been crawling for months and standing up for over a month, so he is incredibly active. Maybe we just have very curious, active boys that want to seeing what's going on even when they're tired!
What are some other ways of soothing in the night besides pu/pd? We try singing and it sometimes works - just curious about other ideas. lj, I'm hoping others will give ideas that will help us both! All the best to you and your LO.