Any one in Indiana wanna teach me how to probe/pop

I have 4 snakes. 1 Mojave, and 3 normals 1 being a granite. Out of those the Mojave is suppose to be a male and so is the granite, the other 2 females. Now this is just taking the what the people that i got them from said. I know 2 of them are taking the word of people they got them from.
I want to learn to probe and pop snakes. However I don't want to just learn by trial and error since it could really hurt the snake. I live in central Indiana and am willing to drive a little.

there are some really good videos on youtube. I watched this one because Brian Gundy is a local breeder in my area. I havent tried it yet myself.

http://youtu.be/qUwCI_xjaIk

Yeah i'v watched a few videos. But i have also read on here numerous people say do not do it unless you have someone teach you. If not done properly then you can cause serious damage to the snake.

I have found someone that will teach me to pop. Now just need someone that will teach me to probe.