Great charts, has improved greatly since first used it. Kudos!

may i suggest one thing:

- currently the cross misbehaves a little. It behaves as expected as long as one keeps moving it, but if one holds its position somewhere on the chart for a few 1/10s of second, when resuming movement before it follows the actual mouse coordinates it stays freezed for another while. It appears to be waiting for data or something, it feels unresponsive. Wouldn't it be possible to untie the actual cross drawing from whatever is freezing it? (Maybe adding some feedback indication that underlying data is "dirty" while moving, or reducing polling frequency to reduce the effect)

In any case, functionality as priority, and that is surely delivered.

Many thanks!