This is a really good frame and in truth has essentially no competition in this space. There are several things I would change if I could.
1) It is weird for a modern frame in this weight class to not support an AIO. Doing so would free up the ability to drop about 10g in my build (going from 20x20 stack including hardware adjustments). There is also more than enough space under the hood for it.
2) I feel this is a real missed opportunity to go true X with such a long frame relative to prop si...