The key is tuning in a custom curve on your cars combo. The O4 PMS is the best mod ever since the blower install.

I've been tuning it for a week now and I believe I have it almost perfected! It takes awhile to get it all figured out on fuel and timing but the curve is what you want but I'm still learning myself.
Idle table:
Timing @ 10*
Start up Fuel @ -30
Idle Control: Off
P/T table:
I started with setting part throttle tables (LL,ML & HL) until I had no pinging and felt max power. I worked with the timing in LL first and drove around and did the ML next and HL last.
LL 2 3 4 ML 5 6 7 HL
2000 10 10 10 10 -5 -5 -10 -10 -10
2500 10 10 10 10 -5 -5 -10 -10 -10
3000 10 10 10 10 -5 -5 -10 -10 -10
3500 10 10 10 10 -5 -5 -10 -10 -10
4000 10 10 10 10 -5 -5 -10 -10 -10
4500 10 10 10 10 -5 -5 -10 -10 -10
5000 10 10 10 10 -5 -5 -10 -10 -10
5500 10 10 10 10 -5 -5 -10 -10 -10
6000 10 10 10 10 -5 -5 -10 -10 -10
6500 10 10 10 10 -5 -5 -10 -10 -10
WOT table:
I set timing next in here same as the PT table until I had max power and then no pinging.
3-4K -15*= (10* total timing)
4-5K -10*= (15* total timing)
5-7K -5* = (20* total timing)
I use Standalone : On @ 2200 RPM (automatically starts timing @ 25* total +/- what I added in the other menus.)
It took me over a week after install to get it tuned just right and it will change everyday b/c you pick up so much info and learn a lot about your car in the process.
Good Luck.