I'm not sure what an "endorsement" is. Is it like a "permit"? I got my KY permit years ago with only an eye test and 20 or 25 question exam on a computer. Was totally legal. Permit was good for 3 years and I dilly dallied around for 2 years before taking the riding test (Joke--you'd have to fall off the bike to fail). Endorsement/permit/whatever as long as it makes you legal to ride then ride and let the paperwork catch up to you later.