#ink flow

I've been experimenting with dip pen calligraphy and I'm having some trouble getting a consistent ink flow... I've tried adjusting the nib, cleaning it, and even using different types of ink, but nothing seems to be working?? I'm starting to think it's the paper I'm using, but I've used this same paper before with a fountain pen and it worked fine... so I'm not really sure what's going on here. Does anyone have any experience with this type of problem?? I'd really appreciate any advice or suggestions you might have... I've been struggling with this for a while now and it's getting pretty frustrating