No. It's an established fact that your story has changed over the years, and that you claim without evidence to have a written version from years ago that you won't share with us. There is virtually no chance that your friend's memory of this event has changed in the same way as your memory has.And here we have the last resort of the skeptic, "I don't BELIEVE you."
And that is really the basis for all skepticism, people, photographs, videos, historical denotations are "not to be believed"...
Therefore, it's perfectly reasonable not to believe your amazing claim that your friends' recollection will reinforce your changing story about the event. 6 vs. "no less than 7," stars that morphed into cop lights, honking the horn vs. flashing the lights, etc. It's a confabulation of your own.