What is best humidity

Everyone has their own version of the "best humidity" temp to keep incubating eggs at - I' always did what the recommended is which is 50-55% - But I know a lot of people have different results based on locations - places with more humidity around than others - so what is the best one that gives better overall results - we sometimes get a bit of a higher humidity and sometimes we don't - meaning we have to adjust accordingly sometimes- I have a auto humidity set up which will keep it adjust at the selected humidity temp which to me is the best way to go for those with humidity changes or like when I first started paranoid it went too high or not enough

That said - with various people who hatch eggs - what is the best success in hatches based on humidity temp - some say 40/45% others say 50/55% etc-

I just want to see what the overall population comes out with and go from there

Thanks

Tiff

 

As of now our outside humidity is 77% - which will change in day or so- I plan on starting some eggs here soon of our bigger birds - our usual issue is chicks too big to hatch on their own - even when our one broody hen just hatched hers - chicks were too large to hatch themselves- she only had 1 that was successful on its own -

So I was wondering if based on humidity created larger chicks even for her or we just tend to pop out fairly good sized chicks- we've had good and bad hatches-

Some loss and they all hatch themselves- or some hatches where I've had to assist the majority being they were too large and twisted to fully do it on their own- we have not lost any who hatched or I've had to assist - except 1 who sadly had feet issues ( various reasons why that could of occurred) from broody hen hatch-

Humidity I agree is the main problem with hatching no matter what system used beside keeping proper temp-

I was think of trying a tad bit different humidity temp with this up coming batch to see if makes for easier hatching for the chicks