I have only grown this one. No other Psycopsis varieties. So I can only offer info about this one.
As I said before, it is blooming on a 2 year old spike, so don't cut one of these spikes unless it is browned and dead. My spike didn't have a bud from August 2015 till May 6, 2016. Now the second bud is maturing and should be open within the week.