virtue board in dm

[boca]

ive come across a problem which ive never seen before.
ive got a virtue board in my dm, when i shoot with eyes on i get severe drop off around 110fps, when my eyes are off its works fine 280 - 300 fps every shot, any one any idea whats going on,

yes its a new battery and yes ive done all the usual checks, just want some more ideas of what could cause this before i return the board as faulty

 

[EELZ]

is it 'first shot' drop off or in every shot or drop off in certain balls a string of paint..?

 

[boca]

constant drop off when eyes are on

 

[Scars]

And no drop off with eyes off?

the only thing that can effect velocity electronic wise is your dwell, what are your settings, might be an idea to download the manual and return it to factory settings

What DM is it out of interest?