Yes we do know what percent our insurance is at. You just shift your bloody status tab to where it displays your ship insurance amount. It's on the right hand side and cleary visible and readable. Right now for me it reads that Ship Insurance is 96%, which means I have to pay 4 % of my current ship cost to get my ship back. So I bump it up to 10 or 15 to be sure I can afford my modules again, and go with that. It's not rocket science, it's common sense.
Wholeheartedly agree, go with 10% and you can't go wrong, would give you rep, but got to spread some around first. so for now +1 rep