Here's the answer: there ain't no secrets. Gear doors are voodoo. The geometry is incomprehensible and even if you eventually get it right it won't be the same when you put 100 psi on it. If you get it working with 100 psi then it won't work in flight due to air loads, airframe flexing etc. If you get it working in flight then it won't work the next time....just because their gear doors and gear doors are voodoo.

Speaking from experience,

Craig