Safc and fuel pressure.

[Jesse SR20]

I'm currently running a safc to tune my fuel curve. I know it's downfalls, that's not the topic of discussion.

Since the safc will cause the ign timing to advance when you trim fuel, and most of my trimming is done at high RPM, would it be safer to run a lower fuel pressure ? Therefore allowing me to trim in lesser amounts, and not have the safc affect the timing as much ?

Or do I run into other problems with lower fuel pressure, such as uneven spray, etc ?

Seems like such a waste of fuel pressure, only to trim 20% of fuel from 4500rpm and up.