Hi i would suggest doing it after all the blooms have fallen off and the plant is starting to grow new leaves and roots. I did once when the plant is in bloom but it gives more flower spike instead of a keiki. I think temperature also plays an important part in inducing keiki growth, i would suggest doing it when the temperature is high and when plant starts giving vegetative growth. I'm also waiting for the weather to warm up so i can use some growth hormone on my phals. All the best!!
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