No, they would not.
There is no such thing as a 33% poss het or a 25% poss het. The original 66% poss or 50% poss is either a het or it is not but you have to prove it out. The percentage is the statistical odds of the gene having been passed on from the breeding that produced it but those statistical odds begin and end for that one breeding only. The ultimate het status is still absolutely binary. As such, all subsequent breedings would fall under that same binary - If the odds were against you and so your 66% is not het, then breeding it to a normal means the offspring from that breeding would be 0% het (because half of zero is zero) not 33% poss het