[@Cruallassar]
He would indeed be more than a few feet away and out of Shash's normal range, hence the use of the net flail. But keep in mind that on two occasions he had gotten within the monster's striking distance. He varied his approaches and gave no indicator that from henceforth he'd not even get close to it.

And it lashed its tail forwards and up after dragging the snapping portion, like how a bull whip is cracked by a beginner. Here's how it looks.

From this...

[img] http://pad3.whstatic.com/images/thumb/3/3d/Crack-a-Whip-Step-2-preview.jpg/550px-Crack-a-Whip-Step-2-preview.jpg [/img]
To this.
[img]  https://i.ytimg.com/vi/YNKPIOelTgA/hqdefault.jpg[/img]

Here is a scene from a horror movie that includes a very similar trick. I can't provide the vid link on mobile, but just click and watch the video at the top of the results, "Very mutated man..."

[url]  https://www.google.com/search?q=beginner+whip+cracking&oq=beginner+whip+&aqs=chrome.1.69i57j0l2.4490j0j4&client=ms-android-metropcs-us&sourceid=chrome-mobile&ie=UTF-8#q=slither+very+mutated+man+spills[/url]