You will have to keep working at getting your cloner space better controlled so that you can maintain 75-80f. If it dropped down to 73, it isn't a problem but it will work best if it stays consistently within the 75-80 range.
The cuttings that I can see in the cloner in the pictures, I cant see where there is a node present on the stems below the neoprene holders, just open, bare stem.
I see.. I'll have to tweak it until I get to 77F, then.
Yeah, the node is almost always just above or inside the neoprene circles.