Novice needs help with trimming/cutting questions

[quiltergal]

I've tried it both ways. Two summers ago I cut the spike just above the next viable node. (It's viable if the triangular covering is still green and not paper and dry.) I got a few new flowers from all my Phals, but the flowers were smaller and not as numerous. Last summer I decided to experiment as I had read a thread on this board the debated cut it off vs let it rebloom. I cut all my spikes off in early June. All the plants grew new leaves and roots over the summer and just generally seemed happy and healthy. In the fall after a few cool nights I noticed they were all sending up new spikes. One was even sending up double spikes. The flowers have since bloomed and one spike has a total of 10 huge flowers. I hope it doesn break under the weight of them all. The double spike gave me 13 huge flowers. You can probably see where this is headed. I will cut all spikes as soon as the last flower drops.