First, this market is Fractal and all the TFs above(minimum 1H/4H/D) should be considered before trading on the 15m. i.e. check for the buyers and sellers on the TFs above and then look to trade smaller TFs.
Second, the pins are more of a 'Strength Gauge' than they are a 'Signal Bar'. I don't take every pin as an entry nor would I recommend others do so.
I wait until the candle close and will either enter right away and or look for an even better price to minimize possible losses. This is standard auction market practice. Like Digger1 has said so many times, you don't buy at the top and you don't sell at the bottom.
I always enter manually but whatever is most comfortable for you is fine.
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