Thanks, so no matter which I'll buy Oki, I will try OAT, in that case OpenBh is heavier? What is the reason for this? Does it have some extra system components that are unnecessary for a regular user? I am still curious about the topic of CLines. How is it that on Aliexpress you can buy for almost every country. Is it possible to find them for free? Apparently there are better and worse, how to verify this?