Has Anyone bought flasks from Ching Hwa orchids?

[Fairorchids]

I have not purchased from that breeder (yet). However, two comments:

I purchased flasks from two different Thai vendors last year. They rinsed out the agar prior to shipping, which caused plants to be very jumbled and bruised by the time they arrived. I had to pot them up immediately (but lost most).

I am not sure whether they have to do this to get them through the US plant inspection, or whether it is simply 'how they do it' in Thailand.

If you get sealed flasks with agar in good condition, you have the option of leaving the plants in there somewhat longer. However, how long depends upon:
a. How well the seedlings are spaced in the flask. You don't want them to become too crowded.
b. How many nutrients are left in the agar. I don't know how to judge this. I assume that seller is selling because plants are ready/due to come out, so I tend to deflask upon receipt.

I just got two more hobby flasks from Woodstream at Parkside. One was overdue (seedlings were large), and the other could have waited a while longer, but it is easier for me to just do them and get them into my seedling tubs.