Just when you thought you coudln't add any more custom tuning to your JLF... It's time for the Paradise JLF Actuators.

This actuator addes 1.5mm to the diameter of the standard JLF actuator.  This is enough that it may not work with the stock plate and is more designed for custom silent or other microswitch mods. Designed to take the stock spring or custom Paradise springs, aluminum actuators are a great way to tune that stick perfectly.

Actuators come in 0.5mm increments from 0.5 to 2.0 oversize, red, orange, green, and blue respectively anodized for easy identification.

Support forums, actuators explained.