A Brand New Deck of Playing Cards supporting the Wand is a cost effective way of Controlling incremental changes to the Pillar Height in 0.3mm Steps.
I do not see how any smaller a graduation to the VTA, is going to make much change to the sonic produced.
I am usually seeing a 'Heel Down' on a Cart', once I have finally aligned it for my tastes.
'Toe Down' through to 'Heel Down' are not uncommon subjects of discussion for the aligning of a Cart'. It is the end users assessment through listening that usually determines the 'off-level' positioning selected.
It does seem to be another one of the anomalies in Audio where the end user, defies the math/geometry and uses personal and unique preference as the end control.
Removing a batch of Cards from the Deck before placing the main Pile under the Wand, will allow for incremental 0.3mm Steps to be used, for the Ascending/Descending of the Pillar.
Note: A additional prop might be required to seat the Cards on to, at the required height to contact the Wand.