sloop and Mark,
Partly correct! If you set the ramprate and on level on a device and outside a scene, you would have to do a device reset (pull out the set button and then push it back in) before the settings take effect. That's an Insteon thing which is totally out of our control.
This said, however, if you apply ramprates and onlevels to devices within a scene (either by clicking on the scene icon or by clicking on a controller within that scene and adjusting the on levels and ramprates for each device therein) then you do not need reset the Insteon devices.
I hope in makes sense and, if it doesn't, please let me know and I can call and walk you through it.
With regards,