Not disagreeing with you Pudding, but Ini wanted a solid rules foundation.
From FAQ:
"Unless the effect says otherwise, the pushed creature must move one zone away from the source of the Push"
The Force Pull effect overrides the source for the Push effect. It's not a gray area at all really becuase of how force pull is written to always push the creature towards the force master.
I'm in full agreement that a RAW reading of Force Pull (as worded before the idea of Mind's Eye was a twinkle in the designer's eye) is always toward "her". But two points remain
1) First, as mentioned, Mind's Eye wasn't a concept while Force Pull was originally being worded. It still remains that "her" and "source" are interchangeable in RAW understandings of Force Pull until Mind's Eye was created. Once Mind's Eye hit the field those terms are no longer interchangeable and I definitely believe they deserve a statement of intention. It could be argued that you are no longer using Force Pull in the way it is supposed to be used on either account. Which is the greater part of the intention of Force Pull: That it always closed the gap between FM and target OR That it always PULLS? They are one and the same until Mind's Eye mucks it up for us.
2) What happens now that the Forcemaster is able to target herself with Force Pull through Mind's Eye? Nothing? OR Any direction you choose? Doesn't it make more sense to force (pun intended) the pull to move in a certain direction..i.e. Toward the source? Which is now Mind's Eye. Should changing the Source of Force Pull have ramifications other than range as it does with other spells? Reverse Magic, Revese Attack will affect the Eye rather than the Forcemaster (or Thoughtspore) when using other spells. Why does it not change the effect of Force Pull?
Slightly more frivolously, it could be construed that "her" is a very unclear term in that it could be referring to any "her" in the arena.
I know you and I have been around the block a few times with this one and I respect your rules knowledge and interpretive ability. I am just convinced that the "proper" way to play Force Pull + Mind's Eye is to actually make the Eye cast the spell instead of the Forcemaster and thus BE the "her" to which Force Pull is referring.