I have never weighed mine. I have a Brinsea Eco 20 advance with a turner. I set mine, then I candle maybe on day 4 if I'm curious, but usually wait until day 7 or so. I might candle once more before lock down. I live in Florida so already have a higher humidity, but I do add water from time to time, but mine usually stays in the 30's low 40's, then I bump it up with a sponge for a little higher humidity at lock down. Maybe you are handling them a bit too much?