Hello, I am building a cantilever deck 20 x 15 and I have some questions about the framing. Material is 2 x 10 joists 16OC The beam will be (2)2 x 10. The posts are 6 x 6. 1. There will be about a 2' overhang 2. The support posts will be 9' apart, roughly 3' to 4' of 6 x 6 3. I plan on notching the top of the posts so that the double 2 x 10s have something to sit on 4. I am not planning on putting diagonals under the beam since they are notched. Does all of this sound correct?