Adding anchor points to group of strokes using another stroke
I'm trying to use a (complex-ish) shape to add anchor points to another group of paths where the paths cross over- however i'd like to do it without effecting the stroke weights etc as then the blend will lose its gradient effect.
For example, i'd like to add points to the black strokes where the pink stroke crosses over them without the black strokes losing their relative weights. 
I've tried Pathfinder and different ways of stacking the two items but it either isn't doable or it instantly removes the stroke.
Any suggestions?



