I have an idea for a new mode for ARAY which uses the tmp value to control the life value of the BRAY when it has just spawned from the ARAY particle. This would be useful for making faster aray copiers and a lot more of electronic stuff. If it is not possible then I recommend a new element FRAY - fast aray. It would make the bray spawn at a life of 3 so you could make very fast aray machines and the rest of the properties would be the same as ARAY :D
I don't see why, since you can use red BRAY to clear the normal BRAY, you can achieve the fastest possible speed, 8 frames per shot (because all metals take 8 frames between sparks). Any faster and you have to use two sets of shooters. This would not add any speed enhancements at all.