Extra Speed Done Easily
If you are using a hardened spear shaft then it may be slowing down your shot. During the hardening and cooling process residue is left behind on the spear shaft. If the spear shaft is polished hardened steel then you're half way there!
- Try polishing the shaft shiny and smooth.
- Next, try spraying a thin film of silicone spray on the track of the spear gun.
- Load the spear shaft as normal. Spray the silicone on the shaft covering the track.
Simple, but this application will drastically decrease the amount of drag the shaft will experience against the track when fired. The silicone spray is considered food grade quality and will not spoil the fish's meat or create any kind of biohazard. The silicone will also dissolve slowly off the track and shaft throughout the day of spear fishing. Therefore, reapply before each dive.