If you transplant it now I dont think you will gain much, I plan to always use 5 gallon buckets.. then at worse I am wasting growing medium.. but I dont worry about re-potting... Soil is cheap.. Now of course If I was doing SOG or something where I was not gonna grow a huge plant, that may be too much.. Listen to Marc.. he knows whats up, I am hoping he will take HARRDON place.. I have plants named after both of them.. I trust him!!