That strategy requires you to have good timing on the market. But the problem is, by doing so, it will make you emotional and you will be prone to make mistakes making you lose some of your money.
If you want the best strategy for ordinary investors like us, "buy the dips". If you have a job you should save 20% of your monthly salary and make that available to buy when Bitcoin's price is falling.
On this post I've got some ideas on how to start investing. I think this is the good strategy to invest in bitcoin. I will save my 10% or 15% monthly salary to buy bitcoin when its price going down.
Thanks for this advice it helps me to start investing and trading! I think it is the best way to earn more profits than bounty and airdops.