OP,
There was a recent thread about using shims with Rega Arms, because the arms are designed around their lower than most 14mm high cartridges, and are NOT height adjustable.
To preserve VTA/SRA with a Hana ML (quick search says it is 16.3mm high), adding a 2mm shim is advised.
I wonder what you and others are doing?
This clever design slips in without having to disconnect the arm’s wires
https://www.acoustic-signature.com/products/accessories/rega-spacer-set/


