I understand that increase in wheel chamber pressure is associated to fouling. But does increase in wheel chamber pressure always equate to axial displacement of rotor and increase in thrust bearing temperature? Reduction of process demand feed will result to reduction of wheel chamber pressure, however, we observed that once we return the feed rate to values prior reduction, (ex. 35mbsd to 25mbsd then return to 35mbsd) there will be an increase of WCP? what are your thoughts on this observed trend?