Personally i would let it ferment dry and then back sweeten. It a little tricky trying to stop a ferment. U might run into prob like exploding bottles if its not done correctly
New to cider. Guy at store told me to use safal 05 cuz it wont dry out my cider but its at .998 which is not the prob. I pitched yeast dec 2 (1.070 gravity) and its now jan 7 and just got to .998 and still bubbling every 7 seconds or so. Very slow fermentation is this a prob.