How's your temp, humidity and turning going granny? Nothing much to report here with the eggs in mine. All holding steady.
Is chicken boy still at yours?
Camping/granny, I've used the vinegar baking powder method before and it's worked well. I found as long as the tub you use is relatively small it works well and quick too. Maybe cos the chicks I've put it in have been not well too. Didn't take too long but I could not actually watch them croak it.