Understanding Rollerguns part 2 | Unrolling the Roller Speargun 

Unrolling the Spearfishing Rollergun Series by Chris Coates.
In this spearfishing workshop episode, Chris covers the difference between the standard preload and the full pretension preload on rollerguns.
0:00 Introduction
0:31 The difference between full & std pretension.
3:20 Why full pretension?
Here is the newest version of the Coatesman Double Roller:
coatesmans.com/...
Here are the original Unrolling the Roller articles published in the Ultimate Spearfishing Magazine:
spearguns.blogs...
spearguns.blogs...