How to remove blade trail when touch stops

[yapiskan]

Hi,

Extension seems great. But I need to ask a question. It is ok when I'm acting normally and touch the screen moving a little and stop touching. But when I touch to the screen, move and stop in somewhere, the trail stops too. And the size of the trail is, I guess, about the maximumpoint size that we gave the blade initializer as assumed.

So Is it possible to remove that trail that occurs on touch stop?

Thanks in advance.