I think that Monckton is actually on the same side of the argument that we are on. What he's trying to do is catch them in a lie so that he can take legal action against them. That may be why his focus is on the fact that their calculations do not take into account sun temperature data. I too am disappointed that this push wasn't stopped in it's tracks all the way back to the hacked emails from climategate when they were hiding the decline. I don't know if the tree ring data can be used to attack the mathematical equations that they've gotten wrong, but if it can you may want to suggests that to Monckton. He seems to be one of the key figures doing the most to discredit the hoax that antroprogenic global warming can in any way be significantly reduced by taxing industry.