[...] Setting up the CS 3D HUD is a whole new ball game and requires more tweaks and messing around to get it right [...]

you bet !! and the SDK manual gives only general guidance that does not really help.

My strong feeling is that Captain Sim and Weapons developper are both reluctant to give more guidance than the SDK... Everytime they ask us to recall the sempiternel refrain : "WE HAVE PROVIDED VERY FLEXIBLE WEAPON SYSTEM AND ONE OF THE EASIEST WAYS TO MAKE A MODIFICATION (MOD): ONE XML FILE CONFIGURATION. BUT THE MOD-PERSON MUST HAVE ADVANCED KNOWLEDGE OF BASIC FSX SDK, OUTSTANDING ATTENTIVENESS AND PATIENCE. IT IS NOT FOR EVERYONE"

The only person I know who is really cooperative is a guy whose name is Mark. Thanks to him !

I don't want to be "spoon-fed" on how to set up a CS 3DHD, I just want to know the right order to proceed and which parameters needs to be changed, just like the recommendations I found on this T-P thread :

<CollimationData>0.0,14.01,3.358,0.307</CollimationData>
A,B,C,D
A - is actually equal to the second variable of your aircraft.cfg´s eyepoint
B - same as above, first variable (if you change the - to + or vice versa the HUD is mirrored
C -same as above, third variable
D - IS THE MOST IMPORTANT (and difficult to set up the right way). It changes the size of the HUD in VC. The HUD might be way to big at first installation or just as big as a few dots...I had to change this value very often. In some aircraft reducing this value increases the size, others react just the other way.

the only problem is that those recommendations do not work all the time. As an example, take a look at the changes required for the another company F-16 by Lost in Isaan.