Hello InGearX,
do you mean the refresh of the database that rockbox does or when using the sandisk firmware? I think you can turn off the autoupdate function in rockbox in the settings menu.
To avoid the refresh of the database when adding/removing files using the sandisk firmware (that automatically boots when plugging my player into my computer, because I use Rockbox 3.10) I afterwards safely remove the player (in windows xp) and then switch off the player before unplugging it from USB. After that it boots right into rockbox and I don't have to wait for the database to refresh. (But I am using a clipv2, don't know if that works with the clip+ too)
Nice to hear that there is such great progress on the USB mode.
Greetings
c_k