Yes, mostly. If you have 58PSI at all times because you have a garden hose for a supply and return line, and you tune for AFR, your adjusted VE table will reflect it. Similarly, if you have 58PSI through a crazy straw that drops to 45PSI as your demand increases through a pull, and you tune for AFR, your VE table will reflect it.
So while fuel pressure is not specifically accounted for with a sensor in OEM configuration, fuel pressure definitely has an impact on your VE tables. When it gets dangerous is when you tune on a dyno in the 1:1 gear, but then you go pull in the 1:1 gear where a pull takes a different amount of time due to external conditions. Fuel pressure doesn't drop exclusively with engine RPM, it drops with time when pressure drop through the line is a factor.
Good luck on your project!
thx, I'll see how it goes. I plan on doing a detailed writeup on ho to do the bucket mod. Too much stuff left out of older threads and some pics dont show up.