The idea of the smaller lipo is very good for tuning and running at national or regional level where you have loads of time to charge you'd still only need the one pack which makes it cost effective but where it falls down is when you are racing at club level and charging time is tight, for this you would need more than one pack. Personally, i'd stick with the larger capacity pack, this way you could run 2 or 3 races on a club night and just top up between runs when the time is tight.
As Darren said, it wouldn't be too bad if the pack was considerably cheaper than the others ............. god, did I just agree with Darren?, I must be getting REALLY old
