What would make you trust a typed-name signature over a PDF one?

Quote and Sign launches here in a few hours. The part I keep going back and forth on is the signing record: the client types their name, agrees to a consent sentence, and we store the name, time, IP address and a hash of the exact proposal content, then send both sides a signed PDF.

For those of you who send proposals or contracts: is that enough for you to drop PDF signatures, or is there something a record like this would need before you would trust it? Genuinely asking, it shapes what I build next.