I planted 4 different kinds of peppers this year, all hot. In the past, I have always had a terrible time knowing when the peppers are ready to pick. I had one I picked a few weeks ago and hubby said it wasn't ripe, tasted just like a green pepper instead of hot. Anyone have a way of telling if they are done growing or not? Some years I have let them grow till they started getting dark spots (black) and those were bitter. Please help.