Depending on the season, if the market is already on dip, you may choose to invest and hold till we are out of it, to DCA comes with a clkind of double advantage for those interested in using it, the first aspect is the way it helps in buying gradually as the income flow in for us, then we take advantage of investing without missing out in the buying opportunity over time and we are buying at every dip.
When you're on DCA it wouldn't matter what season that Bitcoin is in, whether it's bull or bear circle you'll just keep buying until your long term target is reached. It should normally take between 4 to 10 years or more before you should consider selling because by then no matter the season or circle that you bought you should be in profit because different ATH must have happened. If you buy and sell within a considerably short term it'll mean that you're trading instead of investing on the long term that is sure of giving you ROI. Bitcoin is a store of value and the value comes from holding for a long term because it's a volatile asset.