If you did the plug chop properly, as in warm it up on old plugs, put brand new ones in, went from 1 to 5 or 1-6 gear WOT then shut it off, put old ones back in and cut them...then I'd say you're 1-2 sizes rich.
That being said...if the bike revs all the way out cleanly and does not feel boggy, etc., then you can leave it.
I'd rather be a little safe rich than on the edge of lean/rich.....which, again...if the plug chop was done correctly, you're safely rich.