Admittedly, sometimes it takes weeks before that opportunity shows up, but it always does - I just need to be ready for it and have the required funds available.
It requires a lot of reserve, but hey - it goes to show that the 'up to 5%' rule really makes sense.
How about doing DCA with a shitcoin? Because, I have seen many coins which never bounce back but do keep on decreasing in value over the time. Not just week, I have been holding few coins like that for years; one good example for such a coin is RDD.
When you are confident about bouncing back then arranging new funds for the purpose of DCA may not be a problem for many people here. But the only thing we must need to make sure is that we are keep buying a highly potential coin or not. I never recommend anyone to go for DCA with any other coin except bitcoin. Overall, I mean where you are into DCA is more important as DCA may not work for all assets unlike stoploss.