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Eh?
No way to get any friction to affect a sphere.

I've tried these frictions with values across the range:

SetObject3DPhysicsFriction(CueBallID,0.8)
SetObject3DPhysicsRollingFriction(CueBallID,0.7)

I've also tried all options for SetObject3DPhysicsAnisotropicFriction()

I've tried the sphere collision shape, I've tried constructing a compound shape with a sphere shape, I've tried friction on the static surface, I've tried different masses, different sized objects, different impulses, tried kinematic collisions - nothing.

All my efforts tell me that these functions don't do anything. Swap out the sphere collision shape to other shapes and friction works. The sphere shape demonstrates collision, but not friction.

Other than applying braking impulses on the opposite vector, I'm as a loss.

Friction has to be applied to both objects that come in contact.
You need to apply friction to the static floor objects as well.

Thanks for confirming.
Just to clarify - I need to apply rolling friction and friction to the floor? This seems to give me some actual friction at least.

Is there some sort of formula for applying friction values re. mass etc?

friction is really dependant on the smoothness/roughness of both objects and off course air friction which you can probably negate with most games (mind you drag is an important factor to consider with flying objects). Im not a physics guru but mass is more relevant when objects interact with one another and the force they apply to each other: F = m x a for example.