Reflected lightning for still images

Hello all, brand new to BorisFX/Optics, love what I’m seeing here.

I have a delivery deadline on an image I just shot. Pair of drumsticks on either side of a chrome-plated harmonica.

From the head of each drumstick, I can create a ball of plasma/lightning that looks great, using S_Zap/static ball explosion. But, how do I have the result reflect in the harmonica that’s in between the two drumsticks?

I’m using PS CC, and playing with blend modes hasn’t seemed to help. Hoping for wisdom and learning…

Thank you!
Jerry

I would duplicate the Zap layer in Optics and on the copied layer move/mirror the Zap over the harmonica while adjusting the blend mode and opacity appropriately.