What rank on product hunt start to drives meaningful traffic to you site?

We've launched on PH a few times now, with various levels of success from 2nd product of the day to 57th, as well as 20 something a few times. I found that the 2nd product of the day drove 200 signs up for our site, but 20th drove 2. Do people have similar or different experiences? eg our launch - https://www.producthunt.com/post...