ozzy

Modern OEM Subaru COP with internal ignitors work fine even at only 30psi boost.
585's are over-rated, far too many seem to get a hard on over them despite their massive and dangerous flaw of premature firing with too much dwell.
 
Your problem is a strange one. I've used IGN1A's on a few cars ( non-link ) and never had any issues with them. If you are not 100% sure the coil triggering system is working safely, I'd proceed with caution. Sparks firing at the wrong time, can cause big problems

Ok that should be fine.  I would expect those coils to be happy up with up to about 500mv offset.
So if it runs ok with B grounded to the cyl head then I would just leave it like that, it will be difficult to find why it is not happy with ECU ground without a scope etc.  I have seen many of those coils grounded that way working without drama although I do prefer to have that referencing ecu ground.      

Subtract 1.0ms from that whole dwell table that you have in your first post (click in grey cell at top left then type "-1" and hit enter), this would be right on what I would start with.  Rarely do these coils need more than about 3.0ms for typical applications, you can go right up to about 9ms when needed (ie 70+psi & methanol) but they are pulling 20A each at that and get very hot fast.  Use the minimum dwell you need to prevent misfire, any more is just making more heat and shortening life. 
The spark duration setting is irrelevent in most 4cyl applications, it only really comes into play with say a single coil on a v8 where you need to dwell & spark the same coil 8 times every cycle.  This setting is used so the ecu can shorten the dwell when there is not enough cycle time left for both full dwell and spark.   

Looks like you're hitting the rpm limit on each shift which causes a fuel cut which causes it to report lean (due to the missed ignition event), the lean patch happens about half a second after the cut which will just be a transport and sensor reading delay.

yes, MAP is the actual sensor reading where as Target Boost is a lookup table. Boost control will not work with MAP as the axis, has to be target boost. 

Change the load axis on the WG duty table to target boost and not MAP