Yes it is and at this current  phase which Bitcoin keeps breaking altime highs you can buy Dips while still maintaining you DCA strategy. How ? Let's say you buy every week but you saw a dip before your Buying period, you could just buy the DIP for that week instead of waiting and possibly  buying higher . There's nothing to worry about though  if you  can't meet up at that time, you can still stick to your  DCA timing as there's  possibility of you getting ebven a higher DIP btw