How to get Transform data of elements within a Mosaic

I am using  dbGetTrueOverlaps to extract data under my cursor through all levels of hierarchy. Ultimately I am striving to get the closest vertex of a path embeded down in the hierarchy to my current (top level) cursor location. I have no problem getting this resolved through all levels of hierarchy with one exception, Mosaics. I currently use dbGetHierPathTransform to transform the data up to my top level but if the elements are within a Mosaic then it always transforms the element data to be where it exists within the original (column 1 row 1) array instance. So if, for example, my cursor is over a path within row 2 column 5  instance of the array I do not get the location I need. It always returns col 1 row 1 equivalent. Is there some way to use  dbGetHierPathTransform to get accurate mosiac data specific to the instance location within the array? Or am I going to have to just do the math and multiply the offsets by the number of rows and columns?

Ron