Fitting all your reccomendations to protect 2011 CRD, definately the right thing?

[Hodge]

so hodge what did the manual boost controller do for you

Few things mate. Allowed me to set max PSI, hence eliminating potential limp mode. And most importantly gave me a smooth, even, linear boost curve, instead of the factory boost doing the "yoyo" all over the place. And , also you can then adjust spool up rate as well to suit.
Dawes/needle valves can be finicky, but once set right, do wonders to the cars performance and feel.