They were saying it was MJO related, but MJO is so tropospheric vs the Polar Stratosphere.. I think larger things are more correlating both is the argument. The anti-correlation is pretty strong though, -0.25 over the N. Pole is 62.5% chance at favoring cold ENSO vs warm ENSO, but that's probably because of not enough examples. It was actually pointed out last March that SSW would jump start El Nino, but the anti-correlation worked last March, as we had cold ENSO later this year.