Not sure why they have moved the Challenger finish but perhaps it is the amount of room required to accommodate both races. The Hawes CP for the full Spiners remains at Hawes, from their website:-
"Fields and lanes have to be navigated on the edge of Hawes, then (for full Spiners) a sprint down the high street, west, towards CP2 at the YHA. Spine Challengers have another 2km to the finish in Hardraw. Cross the high street and follow markers on some short road sections and through fields, to the race finish in tiny Hardraw."