Fellas. I feel I may have given you the wrong impression when I mentioned "heavy acceleration" in the title of this thread. For the sake of clarity and hopefully finding a solution to my problem perhaps I should have said moderate.

I just finished replacing all the front end suspension components minus the shocks. Think tension arms, control arms, tie rods, sway bar links etc... It has been professionally aligned after that. The driving I'm talking about is me carefully function testing a project vehicle. I'm not out to break any land speed records here (That's what the Acura TLS is for ;)) I'm not even getting close to the kickdown portion of the gas pedal. We're looking at 4K to 4.5K RPMs tops, and straight on-ramps, not accelerating from 40 to 75 out of a corner or clover leaf. I've got a pretty good grasp on the physics of driving, and while I love a nice wide tire as much as the next man, wheel spin is wheel spin regardless of the tire size, and in my experience can be felt by the attentive driver. If I believed that the DSC was activating in situations that might even by a stretch of the imagination be getting close to the traction limits of the vehicle I would not waste your time.

At this point because I can't see any realtime errors with the sensors involved, I'm working on finding some software with which I can graph the sensor data over time to hopefully find the flaw in the system.

Once you are moving > 30 wheel spin impossible with the 3.0 even on snow not likely.

I've never had it happen going fast but when one of my wheel sensors was displaced about 1.0 mm it would make abs kick on every stop for about 8 stops before it would disable itself, so look at those as well.

They can be thrown off from rust or the rekuctor built into the bearing can fail producing the symptoms reported.

Comment on "butt sensor" for wheel spin. There have been plenty of times a wheel has lost traction that was impossible for the butt sensor to notice, because if three wheels still have traction there will be no untoward yaw for the butt to pick up.

When I say wheel spin I'm saying the car is going 35 and the wheel is going 36 not that it completely lost it donut burnout style.

Does the 4x4 light blink right at a short point or middle of a gear and at what speed?

If you can get some sensor snapshots of when it happens can be helpful.

One of us may be able to make a control run to see what is normal.

Do any other lights come on eg. abs/brake?

You guys need to wrap your heads around the fact that the DSC is "ON" all the time, the button turns it "Off" and when the light flashes it's signaling that the system as been overrun not that is "kicking in" or "activated". If there is something like a tire size problem that puts the DSC to the limit trying to compensate then it takes only a small difference to put it over the limit and turn the light on. Part of the job of the DSC is to eliminate wheel spin so saying that the light shouldn't be coming on because there is no wheel spin is kinda like a negative option chicken/egg scenario. If you better understand how it works it will easier to figure out the problem (most times ;) .)

Tentative success!
 

Looks like your first suggestion might have been right on the money. Finally got it out for a good drive after swapping in a replacement yaw sensor. 30 min, on and off the freeway, different rates of acceleration and problem appears gone. No flashing DSC light, no abs activating. I'll post back in a few days if the problem is really gone. Thanks again for helping me work through this!