The Lake Tanganyika reconstructions are important in my opinion because they should not suffer some of the more complicated issues of "critter" drift. For the deep ocean proxies, relatively minor variations in ocean currents can cause huge swings in the estimated SST. If the uncertainty in the Lake Tanganyika reconstructions is properly considered, it should provide one of the more stable Paleo "reference" points.
My plot is left to right while the Marcott et al 2013 version used by Nick Stokes is right to left, but you should be able to notice this subtle difference;
This proxy stuff really shouldn't be as hard as these "experts" make it out to be. There is data, uncertainty and weighting, but it should all start with just looking at the bleeding data first.