If you see momentum in the stock slowing or reversing then there is no problem in selling then buying back. If you get it wrong and you think you are missing out on the bigger picture then buy back at a higher price (although maybe less units). Nothing wrong with trading.
My position as a whole now is too large to trade now however does not mean that I may still trade a small portion of it.
NKP Price at posting:
9.5¢ Sentiment: None Disclosure: Held