No, a Match is legally binding regardless of what system is used. Urology (and ophtho) happen earlier than the NRMP Match, therefore there is no way to Match in one of these fields and then Match later in a different one.

Could u match in uro then match again for the reg match? And pick which one u want to keep?

No, you can only do it the other way around where your #1 specialty would be an early match and if you fail to match in that you could try matching into IM or something in the regular match.

What would you do if you, for example, wanted vascular surgery as your #1 choice but if you didn't get that you would rank urology as your #2 specialty? Could that scenario even work if uro matches over a month early? 

\*sorry for this random post just bored until matching lmao\*

Can you be in the regular match and early match?