sell in May and go away!
What are your price assumptions for summer 2019?
The value will continue to rise after this summer, if you have a good trust with Bitcoin, holding is really the first options by keeping this coin
you'll be able to see more value after this season, selling is not a good options not unless you have a good skills sorting it up again and wait
for another good corrections to buy back your coins.
Always check your position twice, never to act without a good back up plans just in case you missed or made a mistake while still playing
with the market.
I agree with you all that holding is still the best, it is safer and lot more profitable, but taking profit too isnt a bad idea, if you take profit with the mindset of using it to increase your holding and not going away with it finally.
I also sold some of my coins yesterday when bitcoin got to $8742, now I am waiting for the next correction to invest again which I am sure there should still be a price correction back to $8200 before moving further in its spike journey. This strategy is actually not for everyone, because to do this, you have to be sure that there will be a correction, if I dont see any sign of future correction, I dont dare take profit so I dont miss out.