Hi there,
Don’t know if this is the best way, but try it.
for the jitter, I would use an expression on the text layer:
wiggle([times per second],[aplitude of wigggle].
eg. wiggle(5,10)
for the flashy look I don’t know I’ve I totally understand what your looking for.
But I’d try this:
Duplicate the layer and set it’s blend mode to lighten.
pickwhip the positions so that the layers keep the same position.
And then again use an expression to get some random flashing:
put this in the opacity value for the lighten layer:
random(100)
does this help?
– Derrick