Another good tip that was given to me,

Applying the brakes to increase engine load will allow you to tune cells further up the load range fairly well.

Getting the region in the VE table correct where your coming on boost can take a little time to perfect, on boost and off boost is fine.

After you adjust your ignition advance its usually good to go back and check your VE table, afr's won't have changed dramatically, but they will have changed.

I personally would aim for AFR's as follows

Idle and every where around idle 14.7
Low RPM low load 14.7
Cruise 15.0 or even leaner, but start off aiming for 14.7-15.0
Low boost (sub 5psi) 13-14 is usually just fine
5-7 psi 12.5 ish
7-10 12.5 maybe a little richer
above 14psi i usually just go nice and rich, so 12.0 dropping to 11.8(ish) when approaching 18psi.

All the load cells around full thottle, off boost so 100KPA ish I just target 12.8.

These are all det dependent, so if you hear any det, richen up that area and pull 1/2 deg of timing.

I would be interested to see what other guys target AFR wise...