hello again, in both cases, the result may be affected by an error :
... r syntax : center may be shifted
... ijk syntax : r may be shifted
* even so, effects happens at a scale that is too low, to matter

considering that code is generated ok, and the controller can run both ijk and r, did someone actually hit into a case where 'ijk' was better then 'r', or viceversa ? and if i may, what was exactly the issue ? if you wish to share the code, i will test it for you / kindly