(2) even with the variations from those 11 year periods, the general trend is for the inner layers to have lower carbon-14/12 ratios than outer layers in a pattern that matches radioactive decay for the half-life of carbon-14 plus the 11 year dark spot cycle:
Notice the widening gap at around 700 BC, to 4000 BC? (Between the so called calibrated results, and uncalibrated ones?)
You could drive a Mac truck through that claim!