A long time ago I noticed this problem, then went through a catalogue of parts being changed (under warranty thankfully)
We changed the CPS, changed the throttle body, DI, plugs etc etc, all seemed to help, and the problem went away.............
Some time later the problem returned along with some cutting out, we agreed that it was possible that the fuel pump was being cooled less due to the level of the fuel.........anyway we changed it and its never happened again :roll:
Maybe you could save expense by starting with that????