I recently purchased a cooktop from GE via home depot. I have not yet installed it but have read the installation instructions. They only covered how to anchor it to the counter for wood or tile countertop while we installed a granite counter. After calling around to various GE contacts all we got conflicting suggestions or a plra of ignorance. After considerable investigationfrom non-GE web sites I found a satisfactory method. However, it does not generate much confidence in GE's attention to details considering that engineered and natural stone are very popular.