What "flicker, jittery movement, frozen movement when shutter half depressed"?
Auto-focus hunting?
Sony have obsoleted and replaced my SLT-A35 by the A37 and now the A58, so it's not the latest EVF but there's no frozen movement when the shutter is half-depressed.
They're getting better though, but still I find a really good OVF is really nice to use whilst an EVF is great for manual focus but at times I wish I had the clarity of an OVF
I've been a reluctant EVF user (my film 7's still have excellent OVF's superior to many Canon FF bodies in clarity and size) If Sony offered an OVF model I would buy it without hesitation. I don't like all my eggs in one basket as they say