Your bow cracks are called wind shakes, really common in osage, when you split out your staves you can try to avoid them, sometimes this is not possible.
When you click on the BBC code when you pull up a picture on Imgur it will copy, paste the code in your text as you type your text, when you hit post, the pictures will appear in your text.
I use Imgur a lot because I like to post my pictures as I write a paragraph, not have them all at the bottom of the page like the PA picture version does.