I think is a wrong approach or better still a big investment mistake if your plan is to sell your bitcoin holdings simply because you want to buy back when the price is dip. For a long term investor who is still in his accumulation phase and you’ve not gotten to your accumulation target then you don’t have to sell your holdings, simply because you’re planning to buy back when it’s dip. Now the question is, what if the dip didn’t occur which means you’ll be waiting for the dip before you accumulate bitcoin and such is not a very good investment mindset, it will make you look like as though you’re a trader who’s only in for a quick short profit making mindset. The reason should be that you’re deciding to do so because you’ve gotten to your point of over accumulation and perhaps you’ve even surpassed your accumulation target and then you noticed you’re in some sort of a reasonable and significant profit after accumulating and holding for the long term goal, at this point the highest you could do is to apply the sustainability withdrawal methods and you can decide to take out your profit and not to sell whole or part of of your bitcoin holdings.
Bitcoin investment is a long term investment which possibly you can pass down to generations and at such selling part or all of your bitcoin holdings with the idea of you will buy back when the price is dip is a wrong investment mindset. Those who wait to accumulate only the dips are no longer investors but they are traders who are in for a quick profit making mindset and that’s what will prompt them to always want to buy when its dip in order for them to sell in higher price.