Spitfire and BF-109 both have tiny little canopies. Even though I said the cockpit is too small on this Spitfire, I think the canopy is a bit large. The stock pilot is perfect for it, he has a 1:6 scale body with a 1:4 scale head.
When dealing with a pilot for an ARF cockpit, I'm usually content to get something that looks about right, even if it's not really scale in size.