i suppose it all depends on the judge and if you got previous for any other offences.

i highly doubt youd get 4 years for 6 plants.you mentioned going with soil as to not seem sophisticated.if you have extraction fans/filters/timers and a contactor there gonna say you was using a sophisticated set up anyway.you also mentioned having some plants vegging while some are in flower,police wil try and use this against you saying you were doing perpetual harvests.

whatever you do dont have scales as these will only add fuel to the fire and dont have any cash that cant be honestly accounted for as this will also be going with plod.also neve admit to suplying anybody not even close friends or family as this will still be looked upon as dealing.