Centauro tuning challenge

[BrianG]

A little information.....  I have owned a number of V 11 MG in my time, but never have I had this much trouble tuning one like I am with this Centauro. I have completed the usual tuning sequence,  and replaced the TPS with a known good unit from another bike. 

With weather cooperating today, I went out on a road test and discovered the followin:
1. Idle is good once warm. The "choke" function works properly while cold.
2. Cruising under light throttle AND below 2000 rpm, the engine runs smoothly at any speed.
3. Accellerating from a stop or from any rolling speed or throttle opening is smooth and as powerful as expected.
4. Steady state cruising above 2000-2500 rpm through 4500 (that's as far as I dared go) precipitates extremely rough runnin, and I mean birdering on violent, at any speed in any gear.

To me, the common issue is engine load/throttle position. This critically includes engine rpm (over 2000 rpm). I thought this pointed to the TPS but a new one had no effect on any of this.

Conversation with Will Creedon suggested enrichening the ECU potentiometer setting.  I found that ¼ turn increments, all the way to full rich did not positively affect the issue. (The last 90* of the available 180*, negatively affected idle and low speed running.)

Does this information stimulate anyone's diagnostic ideas?

[guzzigary]

Never have worked on a Centauro, but the symptoms would have me suspicious of the crankshaft position sensor.

[Pressureangle]

Perhaps @pete roper will chime in here. Don't Centauros have the same potential cam issues as Grisos?  Would Griso ghetto be a more knowledgeable forum? 
There's a wrecked Griso nearby for -$1k.... if the price goes down I may have another project