Plasburst VFX issues

I've noticed some issues with the plasburst weapon VFX.

1st- when a charge is held, at least on the TIE Interceptor, 1 weapon barrel is glowing brighter than the other 3. 

2nd- when the bolts from a TIE Fighter reach near maximum travel distance, the bolts have a weird square glow, like the particle sprite is oversaturated or too small, as if the whole sprite is visible to the border.

As an aside, I think the plasburst weapon should get a unique projectile colour, like Ion weaponry, to better distinguish it's damage potential. Maybe purple, or deep blue, which could help tie it to Umbaran EM plasma weapons, which already seem like the nearest technology type in canon.