Soaking would require clean water AND a clean container for each plant. Or, you will spread any disease or more importantly virus that the plant carries. Cleaning a container between plants would be very time consuming requiring bleach, Kleen Grow or maybe both to disinfect for virus.
I picked up this one. It was amazing. They only had 5 left, but the found them and I got one. Recent FCCs on these seedlings. .
https://www.krullsmith.com/p-238-phalaenopsis-krulls-red-dragon.aspx
I got there at 11:00 on Fri and Miranda was almost sold out. I think the opened at 9:30 very brisk sales and great attendance but never crazy crowded (at least after 11:00) which was nice. I was able to get what I wanted which were 3 Krull-Smith FCCs. Really well organized and well run. Kudos K-S!!