brenberk87-
I don’t think it’s fair to overload Dor Yeshorim with all these requests every time a shadchan picks two names out of a hat.
When I was dating my friends and I used to say it should be checked the date before it starts getting serious (which is obviously different in different circles).
There was only one girl that I requested the numbers be checked by- my lovely wife- but there were two girls that requested that my number be checked against theirs. (They probably felt it was more serious than I did.)