Okay, some food for thought. I will have another play tonight. The unit itself is really well made and very neat with it's own built in battery but it is starting to p1ss me off.
I take on board what you say TC regarding AO/torch zoom and will look into it further but, and there is always a 'but', I have side wheel AO on my scopes and I did try to make adjustments with both last night with very little effect, worth trying again though. I would like to try a bigger torch, just to eliminate it from the equasion or even another T20. Mine is not a T20 by name but Terry on airgun forum makes th