I have done the tech, and have been able to keep the mothers under 10 in, but I put them in flower for other reasons after a few months and now I have another that is doing good and can probably put off 10 too 15 cuttings every 2 or 3 weeks at this point. I have not needed to do any root trimming at this point either, and as the artical states it is something that is done on a annuall basis if I remember right.
Adieu