Thank you to everybody who contributed to this thread

. All of your thoughts, suggestions and everything else were most welcome and contributed to a successful first attempt at using a 12.5 litre airpot in a space of 4800 cm/3

Having had best part of a week now to enjoy this lovely plant, I can give a bit more of a detailed report.

As you can see, my 2 girls are slightly different. From this point on to be known as 'the dark one' and 'the greener one'.
The darker one is the smaller of the two so we'll start with her.

This one is an excellent daytime smoke. The high creeps up on you and then almost makes you forget about it, leaving you very relaxed while all the time your head is buzzing. There is no real downside while carrying out day to day tasks, other than thinking about what you might do next. Because of this, not good for getting to sleep.
And the greener one.
This one was much bigger, but that could just as much be down to position in the pot as anything else, and didn't have such a rich dark colour to it.
The effect is slightly different to. There is a much quicker head rush, followed by feeling very lethargic. I suppose it feels as though you notice the high a bit more in this one. You still get some of the thought activity, but at the same time there is a little monkey sat next to you saying 'Or... you could sit there a bit more'.
He is a very persuasive monkey

This one is better for night time. The thoughts are not over riding, so don't leave you lying awake for 2 hours thinking of thinks your going to do if you remember them, and the sleep is very restful. As proven when my daughter woke up crying the other night having been sick everywhere and I never stirred. Oops.
Thank you again to everybody who chipped in in some way, i'm off to plan my next grow.
Hmmm... I do have a sweet tooth.