Forgot to mention - that dust inside the canopy is a b*gg*r. When I removed the masking tape from the Danish F-104, the inside of the canopy had a slight cloudy, misty look !
At first I thought that some matt clear coat had found it's way inside, as a 'mist', which it could only have done via a tiny locating hole in the nose wheel bay. But it seems to be slowly clearing, thankfully, as there's no way I could remove the canopy, having blended-in all but the bottom of the opening section, on a one-piece canopy!
I can only presume it was maybe condensation or something, but there is a tiny, tiny white 'spot' inside, which has appeared from who know where, and is bl**dy irritating!
Hope you can get the opening section off, and cleaned, without damage to the surrounding areas Andy.