I agree with your assessment of the pen, even though I still insist that it is a "Wolff" rather than "Huafu", as there was indeed another brand called Huafu but romanized from other Chinese characters.
Did you find the longitudinal mould parting lines down the section bothersome? I certainly lost no time in removing them.
And by the way, I got soooo frustrated as they did not put the original "globe and pen" logo on the pen...
I understand about using "Wolff" and should have mentioned something about the company and Hero's acquiring of it. Since the only Chinese characters on the pen are 华孚, I just went with the Pinyin (albeit without noting the tones like I should have haha).
I find it interesting that the only indication that the pen was made by Hero is the little logo on the cap, clip, and nib, which is then oddly put right next to 华孚. They should have either used the 华孚 original logo or at least said "Hero" or 英雄 somewhere to make that clear.
The moulding lines on the section are noticeable, but aren't sharp and don't seem to line up wear my fingers go so I have let them be for the moment. The same lines are actually a bit sharper on the GLM 961, so I think I'll have to do something about them for that case.