Man, I couldn't survive without my morning coffee. I'd just curl up into a little pile of poop.
I haven't noticed any loss of flaccid hang.
You have to consume a lot of caffeine like well over 300mg. I still get around 100mg everyday. If you are taling vasal dialators like ginkgo and arginine they trump the negative effects of caffeine. I think even Zinc trumps it to a degree.

