Hook
Blackbeard's former bo'sun.
Looking at the top-down picture of the deck in the trade announcements I have a feeling the new Aro might be a 10” arm. That’s a very awkward length for a 124 as it can foul the chassis edge under the armboard depending on design (e.g. you can get away with a Rega). 9” is fine, 12” fine, but 10” can be an issue. It depends what hangs down beneath. An original Aro would likely work fine if you were able to drill the armboard for the connection plug etc.
Good point on arm length. Would be nice to read some specs or an owners manual, but I haven’t found any yet.