Hello Geoffrey
I've just finished translating the doc and of course, I also play with the plugin

; nice addition, thanks for this

some remarks
* It seems that when the tool enter laterally in the groves, it use the same feed rate as for cutting ; maybe it can be a good idea to use the one set for the plunge feed rate ?
* Changing the start point in the mop seems to have no effect
* The toolpath filter (ctrl F) is not working with this mop
* same for the cut width display
* the plugin return no warning if the groves height is smaller that the tool thickness (tool width)
++
David