Ditto stagpanther's review.
One thing-- according to LAB's techs, the trigger distance (e.g., projo offset 6", 12", 18" etc)
only sets the geometry for beam intercept. The sensitivity is fixed via the Trigger Level (1-5).
"1" is good.
post:
Two Velcro tabs on the battery pack "cement" it to the mounting base. it ain't goin' nowhere.
One 6" springloaded clamp on the base/bench, and the base ain't goin' nowhere either
Last, a coupla extra mounting holes drilled on that base gives you 6 extra inches of flexibility when you have a long (32") Sharps barrel on that bench