(corn_snake_fan_club)
Thinking about breeding hey! Im tempted too! I have this link if it helps you?
http://www.cornsnakefanclub.co.uk/breeding.html
First of all, males definitely do not need to be anywhere near 300 grams to breed. I have a 125 gram male pewter breed just fine this year without any problems, and a 150 gram snow give me a 100% clutch last year.
And do not incubate your cornsnake eggs at 87 degrees. You are looking at major problems if you do that. You want to stick to 80-82 degrees.