Oh ok, I see...
For a short moment, I thought you had modelled this white explosive band on the canopy. I thought "Wow, they are really into the details..."
However, I think I said it before, but I'm really curious to see the final model. I'm looking for a good Harrier since ages, one that would REALLY fly realistically, no matter what limitations FSX has. It seems your Harrier will have some interesting flight model so I'm keeping an eye on it.
The FPS friendly external model doesn't sound too good to my hears though :/ But I understand your motivations, already explained for the F-104.