Unless the company is really volatile, that seems like a whole lot of action for not a lot of gain. Part of the magic of DCA is not paying attention to the pricing changes in between, because that's not on your pace. You are erasing that with daily sales.
How often do you get a paycheck? Sell on payday, and then even if it was down that day, well, you just got paid! You also have a non-market trigger to do it, instead of shadow market-timing. Then, just decide how many paydays you want to split over.