Marconi,
You do realize that changing the phase anlge of the source wont provide the influence you are hoping for.
(for the readers...that will change the number of the angle provided in the current log...but not the angle between them.)
The same effect can be seen with a different coax length.
(that will also change the "angle number.....NOT the angle it self)
In aspect to your last PDF:
Take a look at segmentation number 5 and 6 of both data provided.
In your "correct" model and in you "no phase" model showing "error"....
IN BOTH MODELS THERE IS A 40/50 DEGREES CHANGE....
THERE IS NO DIFFERENCE BETWEEN THEM.
However, you keep reffering in rigth/wrong and in terms like current log error.
There is NO error. Both are rigth
Think more in terms like at segment 5/6 thats where your "phase shifts" is.
You have to stop looking for that phase shift at 0 degrees.
A phase "change" happens there where the amount of angle changes really fast.
Now, im afraid you still have difficulties interpertating things, that has nothing to do with me not understanding you.
I think that due to remarkts like this:
EXAMPLE:
"You say with "your fix" the antenna view and tabular current long agree..
But how else can interpertate that ...it seems to me you fail to realize they ALREADY agreed.
EXAMPLE:
Your last PDF ...the "fixed" one...
You provide two "data" one is the tabular current log and the other the current - phase indicator as provided on the "view" antenna screen.
However ...THOSE TWO DO NOT COMBINE. Well...they do but not as you want to express the angle of the phase.
They will if you look from above...If you got it...Why would one provide the not logical view ???
ANOTHER EXAMPLE:
Your expectation in regards to your "fix" and your "wish" it will change the vector.
(for example: you mention your hope the gain beeing closer to the one sirio provided)
The expectation (hope) alone you have... says enough.
Ask yourself...
What you have done is similair to removing the source directly from the antenna and place it at at the end of a quater wave coax cable.
now, would it mather if we changed the angle of the source ?
Were at 27000000 Hz active (27 Mhz,) it happens rather often per second..
Now, im perfectly understanding that you would like to put it under "miscommunication"
But, I honestly believe that is not the case.
Now, im afraid my effort explaining you is not producing the result i have hoped for.
(except for shockwave/homer and a few other readers perhaps)
Oh well, you cant have all 
Kind Regards, H.