CS-22 Premounts - different wheels = different tyres?
 

Anyone notice any difference between different batches of CS-22 premounts. I have in my hand one set on a solid off-white dish wheel, and one set with an almost translucent dish wheel.

Both are P/N CS-22GL.

I think the solid wheels are older - anyone know if the tyres will be different (i.e. improved compound in later batches???). And are the solid wheels weaker than the translucent ones?

Any help much appreciated.