I tend to think the laser blasts were re-comped in '04. The look of the inner cores often seems distinctly different to the way they are in the original, but of course it's hard to say for sure.
If they were, might it explain why they usually stayed a proper red while the flash frames were all turned pink or purple by the screwed up colours? From the opposite angle, it could also explain why some of them ended up completely desaturated in other scenes . . .