Just wanted to say this now, real quick and while I'm thinking about it ('cause I've been putting it off/forgetting to mention it these past several days), that I have made further edits to my fursuit head. Whereas it used to be one continuous bucket of foam all the way 'round my head, I've now trimmed off some of the unnecessary foam in the back (like the foam structure on the back of this head). Furthermore, I've sewn the neck flap together in the back, instead of leaving it as two independant pieces of fabric.
Ideally, these edits will allow the fur to lay flatter against my neck, and also help it stay tucked beneath the collar of my shirt. You can see in my Valentine's Day video that the neck flap often stuck out in the back, due to it being pulled away from my head by the foam, and possibly due to the smaller, separated flaps being easier to move than a large, singular flap would be. After a few tests, the makeover seems to have worked, but a minute-long head movement test isn't exactly a multi-hour fursuit outing; Lord willing, I'll get a good field test tomorrow... well, today, rather....
I'm tired. G'night!