I don't have a stub, but ...
... you may get faster answers if you post a photo of your writing with the pen, and maybe a close-up of the nib or two.
Well, I was hoping to avoid having my hand-writing available for all to view blush, but you do make a good point, so here it is:
The best nib shots I could get:
Again, I really like the way it writes; very smooth and wet (but not too wet), and it may very well be a stub nib. I just have never had one before and don't know what to expect. I have had no skipping issues and it seems very forgiving as to how a hold the pen and what angle / orientation the nib contacts the paper.
Thanks,
CZ