Can you tighten the top...

of a Bib seperately from the bottom? Just wondering for future reference.

Yes, you can.

Aaaaaaaaaaaallllllllllllrrrrrrrrrrrrighty Than!

The pressure from the top setting is a result of your bottom screw settings. If you have tighten the top all the way closed and you need more then I would say you need to close the bottom a little more. You just have to try different settings. Sometimes just the slightest change can make a big difference.