I've often pondered whether cock size has an effect on ED and the effectiveness of ED medication.
I'm not boasting when I say I have a big cock.
I wonder if there's a formula for effective erections.
We used to say it's to do with the heat of the meat and the angle of the dangle.
I'm not a medical expert but I know a bit about hydraulics.
The pressure required to charge a length of vertical hose depends on the length of the hose, diameter, frictional loss and flow rate.
Medical opinion seems to suggest there's no correlation between size of penis and effectiveness of ED meds but I'm not convinced.
Don't you need higher blood pressure to fill a bigger volume?
Anecdotally my limited personal observations seem to support that conclusion.
I know from conversations and experience in a past threesome, that one of my old pals has what's best described as a little todger.
It's a stubby little member and he's never had any problems with getting it hard, although he's often said he's jealous of my large 'snake'.
Whereas my erections have not retained the rigidity since I reached my 50s.
The amount of pressure and blood flow to achieve full engorgement of my large member is surely greater than for my pal's little todger.

I'd be interested to hear your own experiences and evidence, be it expertise or anecdotal.
External Link/Members Only