Well to complete the story, in the beginning the factory was named KW, then decided to go on its own and became V6F, then it's last transformation was to split the factory into two factories, XF and VSF, with the original intention VSF focusing on PAMs and XF for other brands. Then probably realizing there is an untapped market for PAMs because of the void left by Noob deciding to all but stop PAM production. H-factory closing down, other factories like SF and ZF also leaving the PAM space and its sibling VSF almost dominating the new PAM market, XF probably said "what the heck, I'll make traditional PAMs now" and so started releasing 000, 005 and 127.