Well after checking options with the. 2 and 1/3 s9 old firm ware gear.

Upgrade to auto tune will make them too loud.

We moved them all from the solar loft and put them in buysolars basement for heating.

So we have to run fans at 50 % and set freq at 525.

Thus auto tune won't be viable for about 120 days.

It is pretty clear to me the old firm ware sucks at block finding.

Kane's stats show it.

And the guy that spent 325 btc solo mining  on nice hash with far better luck at .01 or 10 th settings.

(No s9s at that setting). Really indicate the old s9 firm ware sucks.

Soooooooo we will point the 27th at f2pool.

And keep the avalons pointed here.  13th

If your setup forces you to lower fans and not use auto tune I guess f2 pool should suffer. For it not kano