Awesome report Adrian!
Just curious- And I'm pretty certain the ES wouldn't rate as well as the XWs & Delos, but at some stage can you do a side by side comparison with the XW? I'm curious to know how much of a difference there is.
I read in a Cloudy Nights review
here regarding the with 82deg 4.7mm, there was an issue with glare from bright objects out of the FOV.
The great thing about premium eyepieces as you've just found out, is that they show so much more detail and colour and make those hard to see faint fuzzy things suddenly pop into the eyepiece.
I really feel the telescope isn't done it's true justice without them.