for par cans i would reccomend the stage desk 16. i have seen it in action and it can chase both fast and slow and everything in between, as far as par cans are concerned. the description of the lightsaver says it's best function are effect lights like the agressor and vertigo. i reccomend the stage desk, it isn't too expensive and you can always add more pars to it down the road, i think it would serve all of your par needs very well.
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