Hi bingo,
You're right, it is. It was a toss up between having a bit of 'rake' on the screen, or a really dorky looking vertical one. We went for the slightly more raked one. The filling will be no different to how it is for my Cub, or Sam's Luton. We'll need to be careful, but luckily there'll be no need for ladders etc, and we can always protect the screen with a cloth/sheet during re-filling.