Don't worry, my release isn't perfect either... If I get an awkward spot I tend to bump their mouths, but that's also getting better and I've been making sure I grab mane if I think there's a change I'll hit them.
I'll definitely start working on my automatic release as soon as my position is solid. I was doing a decent job last year but since I had to take so much time off jumping I've lost my position and with that my automatic release. But it's starting to come back! :)