Ok here is a couple more. While there is some variation between kprobe 1 and kprobe 2, there is still evidence of it spiking up but only sometimes (on the same disk and firmware).
a bad ty (same as above)
a good ty
These were yuden000t02 out of the same pack, same burn speed (8x) and same firmware
Not a bad spike but still a spike (this same disk looked worse with kprobe1)
same disk in kprobe1
These may not be the best examples but I am having to find things to burn to get kprobe2 scans that I know were on the 3500 at rated speed and then take the time to do 2 scans to compare kp1 and kp2. The point is that with same firmware and disks from the same pack, some burn great and some spike up (sometimes not really bad but sometimes kind of bad). It's happening with good media liky ty, ricoh 01 and 02, sony, maxell etc. If some are burning good, why arn't others?
I'm just trying to figure out if it might be firmware, a bad drive, or something else on my system. I guess that optimizing/checking my system (defrag, check dma enabled etc.) and changing firmware would be easy enough so I'll do that but do any of you with more experience or expertiece with this drive have any idea what area might be causing it (in other words, has this happened to anyone else before or have you heard of it happening)? Any clue what the cause was if it did?