I've been having a lot of trouble getting this trick down. Often, the ken will fling out of my fingers or I can't get the complete rotation of the revolver. I've had luck with when a kendama has much of the weight distributed at the end of the handle, but I would like to learn the trick through myself rather than having to use a certain kendama to land it. Are there any tips to help land this trick? Or tips on the other variations of the double revolver such as Swing Revolver, Revolver Flip, and Reverse Revolver? Thank you, I appreciate the help !