Looking at this a second time perhaps there is some usefulness here. If the spread bytween long and short term yields start rising...there is a bit of lag but gold has tended to bottom and then catch up

Again the long term stochastic on POG has been a nice indicator for bullion...and you don't see too many people use it...

So although not in golds yet but if the spread starts rising...and you get a stochastics cross on POG on can assume that gold stocks will follow