Plain or Grooved rotors

[Noono]

Assuming everything else equal, are grooved discs worth the extra cost?
What do people prefer?

Thanks, Gregg

[MK1 Paul]

Grooved disc will dissipate heat water dirt better keep the pads cleaner and might reduce uneven disc wear a little as well.
Downside if any might be pads wear quicker.

[Noono]

Thanks Mk1 Paul

Gregg