Again if you don't want to accumulate during any dip since you have reached overaccumulation and you have started selling I will advise you engage in selling only your profit, what do I mean, if you are holding 10 Bitcoin and the current price is $107k and you reached your overaccumulation stage when the price $98k what you will do is selling only what has added to the $98k.
This strategy is not for everyone is for just who are very much interested in continuing holding even after reaching overaccumulation stage, but also eager to taste Bitcoin profit.
I think over accumulation should be measured in quantity and not market value. This is because if we continue to focus on market value we might make mistakes and unintentionally get even below our accumulation target.
You do have a target and that should be your main reference, even if you intend taking profit, be sure to only target taking profits from the quantity that keeps you in overaccumulations status. for example if you initially set out to accumulate 9BTC and you already have 10BTC, then it is obvious you are already in overaccumulation status, if you would take profits at all within your holding period(which I would not intentionally advise), you should focus on taking profits only out of the 1BTC that keeps you in over accumulation and that would be a better option instead of basing your judgement on the price increase.