I'm not even dignifying the Milking thing with a response. Halfly because I don't keep venomous and halfly because, like Lisa said, it's stressful for the snake and I try to not stress my snakes.
As for probing, from what I've heard, I would just read a step by step and try it on your own, I would personally find an experienced prober and have them teach you. You can really damage a snake if you do it wrong, I would hate to make all my snakes infertile.
"A rattlesnake that doesn't bite teaches you nothing."