Moving cylinders based on distance to point

Hey guys, 

here is my new conundrum:

I have a perforated surface affected by a point on curve.  There is also a cylinder behind the surface at each perforation.  The idea is that the cylinders will protrude through the surface in relation to the same point on curve.  I have been able to get a set of cylinders to follow the point and protrude through the surface, but only by creating a new cylinder, rather than moving the original cylinder on the grid, which is what I am aiming to do.  Is there a way to move the original cylinders in this fashion without creating a new set of cylinders that follow the point?  Thanks in advance!