Accumulation time is a very subjective term in my opinion. I personally have a very hard time to buy BTC and ETH maybe in a few weeks for 48k per BTC or 3.5k per ETH just because it dumped a bit in comparison to the weeks before, because a few months or years ago i could have bought  BTC for under 10k and ETH for under 1k $. I am also not so sure if really see a correction so soon, i mean we are still a good chunk away from the ATH of BTC and still a little 200 bucks per ETH away from it's ATH from back in may. Of course a small correction can happen anytime out of nowhere but i don't see a majo price drop of >10% in the near future.