I did find a reddit thread with a very similar situation and the general consensus was for my situation of less than $1.6 million in super it makes no difference if I leave it in super or release the 85% back to myself. Same tax regardless.
The ability to remove 85% is just there if someone couldn't afford to pay the additional tax incurred when this excess is added to their taxable income.
Hopefully eventually this community will contain this sort of information and less google results lead to reddit :) Do these lemmy communities get trawled by google?
Still keen to hear the advice of others if Ive misunderstood something. Will have to get my employer to reduce the amount I'm adding into super voluntarily to avoid this confusion next year. It's happened for the last 4 years and is even more this financial year. I've just been too lazy to look into which is better/worse.