I've read a few places and had a few people tell me that you can guestimate the gender of your ball python by looking at tail shape, head size, and spur size.
I don't mean that you can be like "I'm sure I have a male!" because of it, but it's an indicator.

Is this true? Bigger head (compared to body size), smaller spurs, rounder tail is female and smaller head, bigger spurs and pointier tail is male?