The "upland" is the very place where Dr. Mann got his tree ring samples ~ and there hadn't been any trees of the kind sampled growing there for 150 years.
That means there was no way any growth patterns in that upland area for the last 150 years could be compared to actual thermometer data.
This gave Dr. Mann the liberty of interpreting the tree ring samples however he wished without criticism.
So, it wasn't so much that Dr. Mann "cherry picked" his tree rings, but that he got tree rings from trees in an environment that simply could not be compared and contrasted against data from scientific instruments ~ to wit, thermometers.
No doubt the researchers who worked on this 1998 report Knew What Dr. Mann Did and why it was illegitimate.
I don't have time to go back and see if any of them ended up in the "AGW Denier" category.
There are several emails in the hacked files attesting to the fact that they couldn’t get good tree ring data. They still claim tree ring data as a key support for Global Warming, though their data sucketh.
These guys found the ONE tree growing in all of Siberia...and they cut it down!!
Real scientists would never make any assumption on an individual.
BA