Yeah, that's part of why we went with as big of a pump as we did. I had tried just using those little Carter fuel pumps for a while, but they couldn't keep up, even on a stock pump with rebuilt injectors. I also plan to go to a 12mm pump head instead of the current 10mm head at some point, so it was also a bit of future proofing to make sure I wouldn't have delivery problems when we did that.
I actually had an issue several years ago where the pump lost prime. At the time we were just relying on the internal vanes to supply the injection pump, after that we put on one of those little Carter pumps. When I started making those long interstate trips the truck would act like it was starving for fuel around 3-3.5 hours in. We eventually put in a fuel pressure gauge and confirmed that was the issue. Once we put the Airdog in I have been able to maintain constant fuel pressure all the way. Still on a stock pump with stock injectors. Only thing we've done there is advance the pump timing a few degrees