so do I have a lock???

Yep looks like there doing it

Congrats! Hopefully, after a little more action like that you'll have big beautiful eggs to care for!

How many times do they need to "lock" to produce? I have been reading soem articles on BP breeding and they aren't really that helpful. :(

Is there a place that I can go that explains it in detail that is easy to understand?

The last pic, in your first post, is almost definately a lock. Mine will oftel line-up straight as opposed to wrapping their tails areound each other. Looking good! And I would bet the farm that your last pic in the post before mine, is a firm lockup.