you get the first award of the year for the customer who actually knows and cares about their stone. for the CA glue, i buy mine at a hobby shop where they sell model cars. im not sure about stone supliers but you can get some CA at the hobby shop that is as thin or thinner than water, and will harden just the same with the accelerator.
the fact that there is a "hump" instead of a "dip" tells me that there is indeed movement, and may be the consequence of the setting material or the substrate. how close is the dishwasher to the area? ive seen dishwashers wreak havoc on countertops when not properly accounted for. the steam will swell the substrate and it will expand and contract and finally something will give. honestly dont believe that a rod would have prevent this particular occurance, so stop kicking yourself. if you had a "dip" in the area of question, on the otherhand, kick away.
