DCA never gets old and it's the strategy that the majority of us is aware of. What we need to plan is to get on how long we're going to hold the bitcoins you've bought. If you have no exit plan, that's just fine and you can get some portion of it when you want to and sell it at your will if you need some extra cash for some purposes that you need to spend it.
DCA will be the most used method especially that majority of us can't buy bitcoins in bulk then people will go use this strategy since they can buy their bitcoins on regular intervals depends on when they can afford to do it. I think planning to sell well depends on situation and the needs of the holder itself since if he feel that he need to cashout something then they must sell their profits nothing can stop them or tell that its wrong since that's profit already they can earn that back since your balance left will still generate you a profit and also you can do your interval accumulation once you are ready again to accumulate.
That's it, while the major institutions can do whatever they can and are able to buy in bulk and thousands of bitcoin. We as simple investors can do little by buying through DCA. And if you're onto the point that you want to sell, the matter is on how you are satisfied for your time of selling. But as you can see, many from the forum don't want to sell as soon as possible and there are more prolonged plans that they'd sell at the right time with a better pricing and no one knows when that time is going to come. As soon as you're wanting to cash out and you're happy with the price and that's how you reward yourself then do it.