The product is well engineered and looks good. My only contribution to your improvement would be to say that my blind arrived and so installed it and then I got a mystery email to say my velux purchase would be arriving 3 days after it had been delivered. As it was, a small package arrived: it was a couple of fixings that could be fixed to the velux frame BEFORE installing the blind. Fortunately my frame had these guides built into them so the fixings weren’t necessary but it did throw me a little. And it was a waste because they aren’t needed. I guess all GGU P10 windows are made in the same way with the pre-formed blind fixture? Otherwise, excellent and I’m very pleased with how you have thought through the engineering around the blind and the best installation of the blind. Well done.