u/Fresh-Evening-3386

I have two corn snakes and I'm unsure of their sex. Can anyone help me identify them based on their size?

1. 6 years old: 130cm(51“) total / 19cm(7.5”) tail
2. 4 years old: 123cm(48“) total / 18cm(7“) tail
   The tail ratio for both is roughly 14.5%. I’ve seen different standards for sexing by length, so I'm not sure what to believe. Are they likely both males, or could they be large females? Thanks in advance!