Of the new ones. both have same layout, same cover prep, Blue and Black
Black is sooner (maybe 1') and approx 3 boards stronger downlane.
The blue is a great piece when there is defined friction, it just strikes for days..
I got the black so I can use it a little sooner instead of waiting for them to break down.
I do not have the Red, but its supposed to be a little longer and little more angular than the Blue.
to answer your question, definitely for medium(at best) to medium light oil
great predictable arcing motion