I think you're right. Those BASTARD males! I must be one of the luckiest persons when it comes to female to male ratio. Last year 6 out of 6 seedlings were female, this year 10 out of 12 were female. My friend grew 7 plants from seed and 4 turned male this year. A few years ago 9 out of 10 I grew were female(too bad I fried 6 of them).