Cliff's: Good results. Rising on-axis response above 5khz. But no break-up issues to speak of; smoothed out over multiple octaves it appears. Would actually make a better wideband driver than most drivers marketed as "wideband". Though, I still wouldn't recommend that.
Based on both data and my own subjective experience, I would not cross this driver lower than the typical midrange 300hz (give or take, depending on exact usage) because there's not a lot of (linear) excursion here. Thumbs up.
https://www.erinsaudiocorner.com/driveunits/scanspeak_discovery_10f4424g00_midrange/
