sparker
Silver $$ Contributor
The piece of blue tape is for eye alignment. It eliminates parallax issues with the magnifying lens. A single kernel of extruded medium burning powder moves the pointer from eclipsing the zero line to resting at the top of it. These scales settle out in 4 seconds. I too use and recommend the Lee Perfect powder thrower, the old school plastic one. You can pay 10-20x the amount for a thrower and not get better performance.Decidedly low tech, but works quite well.









