Bloody hell. This Rumcajs bloke just answered a crate of questions I've been pondering for a long time, in a single shot! You seem to know your stuff mate ... First time I've ever seen a bloke here, use a graph to prove a point. And it absolutely made sense. Hats off to you buddy.

I've got my gauges fitted a week ago, so I'm monitoring what the engine is doing, before I apply the NADS. I've scored the whole CRD Nads kit from Mudski a while back, but really haven't had time to toy around with it till now. My trol needs it now more than ever, especially after fitting the 33's.
I think I'll bite the bullet and give the dawes, and needle valves a shot sometime this weekend or the week after. My plan of attack is to, fit the valves, adjust to suit, and then later on blank the EGR just to see what difference it makes.

I'll be honest and say that all in all, I haven't got a bloody clue what I'm doing. I've got a general idea of the principle of the dawes and needle, how it works before and after. And all that was learnt through threads here and a informative chat with Mudski when I picked up the bits.
But there is an in-experienced , un-educated side of me when it comes to "under the hood" kind of stuff in these CRD's that's got me just a tad concerned. I'm approaching this with a "what if this and what if that" attitude. Put it this way I'm yet to even have a look for and trace the vacuum lines needed for the task ahead.

But hey you only live once, onwards and upwards. lol