well I think its a kewl ideal just for the fact I would be able to see when I'm low and if I had a break in the cyclone ,Not that I'm going to field strip my A5 while in a game but at lease I'll know to do something about when I'm off the field...
Now I don't think it will give your position away .. If your spotted because of the orange balls in the cyclone I would hope the person that spotted you would see more of you than just that...
Yes they may not be for every one But I would probly get the smoke one when it comes out...