Colin,
Reading your post it would seem that the amount of lead required is the only criteria you have for choosing one from the other ...I'm sure that I'm mistaken!!
I went for an Inspiration with Vision elecs and did my course with two Evos. I have to say I'm glad I went for the inspiration...its a lot longer and suits me more when kitting up (6ft 2" tall). I'm sure I'll attract flaming but I instinctively feel more comfortable with a 3 litre diluent cylinder rather than 2 litre... however I am still a total beginner.
Certainly feel that I can find the cylinder valves more easily and repeatedly with the longer bottles (I can scratch my ass more easily than my kidneys!!) but again thats probably just a matter of practise.
The trim in the water has proved to be a real pleasure...effortless (well most of the time
)
It is certainly not so air-portable as the Evo but I hope to solve that problem c/o Phi's new travel frame
. Cannot imagine travelling by air with the cylinders too.
I'm not sure that the extra scrubber life will be an issue for me for the forseeable future...especially with the scrubber monitor.
Regards
Steve