it's good that we finally caught up the upswing mid trend,

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if pure investing, it's upone to how much faith and how good FA/TA you have with the company,

if pure flipping, then make sure you always have a mental "stop in", or an actual stop buy order, that if the price goes up over a limit, you must come back in,

otherwise sooner than later you will find you lose all the chips,

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the combo way might be a good choice for the not so God-like investors like you and me, that you keep a core holding intact, and in and out an addtional portion. Whatever you win or lose on the side part can't affect your core holding which you can set a fixed price target.

to borrow a Pyrmaid kind of concept, for example, as XiongDiLian mentioned here, you set your money into 3 pieces, 1/3 core, 1/3 wave, 1/3 daytrading/options... other guru's have similar ideas, Navellier has "60/30/10", etc etc. Regardless the details, the key is to hold on your core, and move around with your speculative part.