Wazup Navyfield, fetz here, and yesterday I made a manual DBing tutorial. I know there are a few on Youtube, but I am not a huge fan of a couple of their techniques. Anyways, this is pretty simple and straight forward, at torwards the end I show a unique "trick drop" as I like to call them. Just play around with different drop styles and get your timing perfect! Enjoy!
https://www.youtube.com/watch?v=AamDwx1y_iE
Isn't letting me embed the video... maybe NF forums doesn't support that.