The following code fragment *appears* to work/fail based on the size of the two 1D arrays, as well as their type. Am I imagining things? If not, does anyone know what the actual limits are?
.SeriesCollection.NewSeries
            .SeriesCollection(.SeriesCollection.Count).XValues = arrayScale
            .SeriesCollection(.SeriesCollection.Count).Values = arrayData
I've been trying to free as much of my code as possible from reliance on sheets, but this issue is really putting a wrench in the works...