N just turns snap on and off
I always keep smart grid off as well, but I think I would use it if the settings were more flexible..
ex. if I want to jump in and out of PRV and want to have the notes snap to 16th notes in there and the clips snap to bars in track view, no matter the zoom level, this would be possible with this feature.
I'm very quick with the N as well, but I think a better smart grid would make the work flow better since I wouldn't have to change the snap value all the time..
it's not jumping between snap on/off that's the problem. it's the jumping between different snap values that I think could be improved