I'm pretty sure there's actually two vertical pole brick packs, one of which is sized properly for the diagonals/horizontals
Use Horizontal and Adapter or else the horizontal and vertical don't match. (Adapter isn't compatible with Vertical.)
AFAIK neither are compatible because the end shape of the vertical isn't the same. It just isn't. It's not a circle, it's an ellipse, because you're cutting it at an angle. It needs to be cut at half the angle it's cut at and match up to something with the same angle going the other way to make a proper turn.
I recommend the Ropes addon, it can do stuff kinda like this. It doesn't allow events on the ropes, sadly, but it lets you do any angle or thickness of pole by setting the slack to zero.