If your not getting any codes then your good to go.
Like kyle said previously....Iv swapped many lbz/lmm injectors and pulled them and put tips on and I know not every injector has went back in the same hole....and never had an issue.
Rob, do you care to elaborate more on the GPCM and ECM calibrations? My balance rates are -322.0 right now i know this is incorrect. But like stated before is copying from GPCM to ECM now going to just take the calibration i used prior and basically save them all again