Thanks Glenn, I thought there was something wrong as to why I wasn't getting any oil in my catch-tank, you've cleared that up now.Thats exactly right pupsi thats how it should be if the rings are working 100 right.
The real issue with the rb26 is ,without stating the obvious ,over supply of oil to the cam gallery and then the oil cant get out or it gets out the breathers that are positioned on the rear of the covers.
Which is why you fit 1.5mm oil restrictors to the supply ..
An easy fis to an existing engine s to fit rb25 cam covers, which go straight on but have the breather vents very close to the front.
Alloy catch cans are very prone to collecting condensation , which mixes with oil and then if you return it to the sump, add water to the oil , which IMHO is a bad idea.
Its a huge topic unfortunatly , also extensively covered on existing threads.