Originally Posted by
Philasteve
Just buy a couple cogs and try things out, find out what you like. Cogs are pretty inexpensive.
That is the best advice in this thread and the only sensible way to sort out your gearing. Just ride the stupid thing. Fit different cogs and ride them. Sooner or later, you find the gearing you like and if your needs or fitness change, you can fit a different one.