There aren't any hard and fast rules here. It's rarely too early to get in touch with angels and get on the radar if you expect that you'll need funding. Mean

There aren't any hard and fast rules here. It's rarely too early to get in touch with angels and get on the radar if you expect that you'll need funding. Meanwhile, keep in mind that the longer you wait, the more traction you get, the better your bargaining position and the higher the valuation.