Well, that is very good to hear. What I did when starting out with C41 was to expose three absolutely identical (tripod, fixed scene including white paper, all primary colours and some human skin, fully manual flash exposure, etc) test rolls with bracketing from -1 to +4 stops on some Portra. I sent one to a pro lab that I trusted, developed one myself immediately and developed the third roll about 4 months later to check how well the chemistry was keeping. They all came out identically and they all print the same on RA4. If you do a similar test, that ought to tell you a lot about how well controlled your process is.
Originally Posted by Truzi
PS: RA4 printing is no harder than B&W printing (though the colour-correcting skills are a bit different) if you have the gear on-hand. Much cheaper, too.