As to the Phantom fluid usage.......Since I am close to upgrading my Graham 2.2 to a Phantom the subject of NOT using fluid perplexed me.I am very familiar with the huge differences even the most minute amounts of fluid impact the 2.2's performance(I am talking pinhead amounts,and have been at this for years,on this arm).
My friend has just upgraded his 2.2 to the Phantom,and "it"(Phantom) is not as sensitive to fluid as the 2.2.Yet,it still "definitely" benefits from fluid usage! You MUST be VERY careful about finding the "perfect" amount,for a given cartridge's energy!This will NOT take one listening session if you are exacting!
I called Bob Graham recently,as I had some questions regarding set-up.The fluid issue came up in the conversation(as did the titanium arm tube option,which he thinks is the equal of the ceramic,and a matter of taste).
As to the fluid usage...his feelings, on non usage was that the arm "sounded quite good,surprisingly,with no fluid,but that does NOT mean it should not be used"(his words). He has not done an A/B comparison,with fluid,and
based on my own experience with my friend's Phantom(he has the same Transfiguration Orpheus cartridge as me)I will definitely use the fluid.
This could be cartridge dependent,but the Phantom definitely likes fluid with the Orpheus in use.Small increments STILL affect sonics BIG TIME!
Hope this helps.
Good luck.