Hey Slaw,
I use the original trough fluid that Max supplied, which seems to work really well for me.
As for leveling issues, I bubble-level to the platter and the arm board surface. I use the smallest, lightest bubble level because on a suspended TT like this, even the weight of the level itself can slightly affect the reading, especially if you don't have a bubble level that sits dead-center over the spindle and have to level to another spot on the platter...
The Purple Heart/ Rock 7/ Helius Omega combo is magic. I had already been floored by the Kiseki when I installed it on to my TA Excalibur 3, but not very long after that, I took a deep breath and upgraded the tonearm to the Omega. The Helius took the sound to yet another level.
Every step of the upgrade has been significantly beneficial to the sound of my system, which is all I really care about. Most audiophiles that audition my system are blown away by the ease, naturalness, and dynamics that this immersive "you are there" musical experience creates.
My analog front-end set-up is roughly $12K now, and when comparing it with other source set-ups in its price range, there is not a contender I could find. Even set-ups at five times the price have a hard time beating this ingenious cartridge-damped technology. Just throwing money at a system won't make it musical... everything needs to play together well in a synergistic way. I consider this front-end to be one of the best values in high-end audio today. it feels good to be done upgrading for now and just enjoying my music.
Just my $0.02