Splitting does not resolve the issue of deflation that is that a given unit of value (1 btc, 1000 micro-btc post-split, whatever) increases over time. It doesn't matter what you do to it or how you measure the quantity of value - if that same value is worth more tomorrow than it is today, there is a prevailing negative pressure on spending it and the result is that people will prefer to hold on to the currency rather than exchange it.