Paint looks excellent
How does this compare to the Captain Cardboard?
A little late to the party, but this simple question requires a complicated answer. First, some history. Captain Cardboard, who I first encountered 20 years ago, started with some RTV pulls of something called a "Pyro Model" of the X-wing. Basically, some left over resin castings that didn't get exploded during the production of the original Star Wars. 'CC' then revised the crude detailing by using those original kit parts he could find, and scratch building the rest of it. Korbanth freely states that his X-wing has Pyro origins. So to answer your question, from what I've read on-line, the Korbanth and Captain Cardboard X-wings are going to be very similar.
But I presume the real question, is how does the Korbanth X-wing compare to a filming miniature. I had (not after buying them) the spare change to buy all of the Star Wars coffee table books, and pretty much confirmed the Pyro based X-wings are different from the filming miniatures. Eventually, other garage kitters, especially Mssr. Salzo, scratchbuilt the entire 1/24 scale X-wing using the very best references they could obtain. A Salzo X-wing (among others) placed next to a Captain Cardboard shows substantial differences in profile.To correct those issues, would require almost a complete reconstruction of a pyro based kit. Yet, the model looks like an X-wing.
Long story short, I managed to get one of, if not
the last, Captain Cardboard X-wings. I've asked on a couple of forums what I should do, and several modelers recommended I build the Captain Cardboard X-wing unmodified, because the kit itself is a piece of modeling history, and should be celebrated it for what it is. And that's my plan, to build the CC X-wing as is.