Hey thanks KBrown!
What you mean is even though I spend a lot of time & hardwork to gain proficiency in MR, I still have to be learning the rendering methodologies of every studio that I work for? phew!

No doubt its so much fun , & so much hard work too!

It is great to know that understanding lighting is the key.
Would taking short intense courses on studio photography & using studio lights with light meters & camera settings be of good help?

Cos reading about photograpghy kinda gets lil boring after a while.

Also , is it imperative for me to be an expert at some compositing s/w like combustion/shake?

Thanks for the valuable guidance!