One time should be good you don't need any more soil though you do this to get ready for the chopp save the soil for your next crop. I'm gonna chopp mine this Sunday then run a 400 watt Scrog of OG kush, Super Lemon Haze and Tagerine Dream my bud just did 1 and got over 1 1/2 pounds I see scrog is the way to grow now I will keep a few auots in my mom tent though only soil for me with those. Let me know how your smoke turns out.
I ended up getting about 3.6 zips off of the 2 plants and tried some cured for about 1 week 2 days and it was ok some high mids I would say. The main colas of mine are super dank though gonna cure those for about 2 months and see how they taste. How much was your yield and what was your flavor like. My yields were 1.2 PEA and 2.4 from my LDA I think I may do an auto in soil every 2 months just for me.