Well, I did get the bike out with the TTS and laptop (I have an "old" black TTS) hooked up over the weekend. The data recording showed that the spark retard was hitting 8 degrees without too much effort on my part. So it's not just intake valve noise. I've tried two different brands of octane boost, and have been steadily upping the dosage, but even the octane boost doesn't seem to make much difference.
Doc -thanks for the suggestion about increasing the acceleration enrichment, but this seems to be more a function of throttle position. Meaning that once I hit a throttle position that causes pinging, if I hold it at that position it continues to ping until I let off on it, or go to WOT. It may still be pinging even at WOT, but it doesn't make an audible noise at that point.
If octane booster kills the O2 sensors, then mine may already be toast! I used quite a bit of it on my old 120R (same sensors), and now the bike is back on the (octane boost) bottle again with the T124.

I appreciate everyone's comments and suggestions. The shop that did the tuning is still working with me, but they're 400 miles from my house so I have to schedule a time to get it back down there. I have to admit that when I told the shop owner what the dyno operator said, he seemed pretty alarmed, but I was out of time and needed to head out on the 400 miles back home by that point...