My stock of sealed ATV2s were from France/Germany (F/DA model) primarily. There were also some from Poland and some from Hungary.
I had 32 altogether and of that lot I had four on 4.4.2 and one on 4.1 (I haven’t bothered even dumping blobs on these). The rest were all 4.4.4 and I have two 4.4.3.
Al dump blobs with aptickets and every one of them has been jailbroken though I do not use Seas0npass to jailbreak these, I use Sn0wbreeze 2.9.14 - and if they don’t work second time I use Total Commander. I gave up on Seas0npass some time ago for jailbreaking 4.x.x though I still use it for 5.x.x
I have not had one 4.4.3 or 4.4.4 that I have failed to jailbreak. I only have two left now.