If the fret dress was good then unless you have been playing excessively hard your frets will be ok.
When you say an RG copy...it's not an ibanez then? I doubt that matters to much. I assume it has 24 frets still?
Neck relief is all about feel, and is to my mind less about the numbers nad guages and more about how it feels to play, and every player is different.
But to try to answer your question how about using the standard ibanez factory set up specs as a guide if you really want to get into guages and numbers etc?
Go here, scroll down and click on the Ibanez factory set up
http://www.stewmac.com/freeinfo/Neck_relief,_building_and_repair/a-famoussetups.html
This should help as well:
http://www.ibanezrules.com/tech/setup/action.htm
have you got any fret buzz? or dead notes? play every note on the guitar and listen carefully. If it was set up and you havent messed with it I'd be surprised, unless the neck has been left in the heat or something.
While you are at it check your intonation:
Play an F chord and keeping the barre shape slide it right up the neck strumming on each fret shift. Does it go out of tune as you go up the neck? It shouldnt.
Play the open strings and comapre them to the harmonic note played on each string at the 12th fret and the fretted note on each string at the 12th fret. They should all be th esame.