Vanguard 500 Index (VFINX) Vanguard Value Index (VIVAX) Vanguard Small Cap Index (NAESX) Vanguard Small Cap Value Index (VISVX)
VFINX and NAESX are large/small cap blends, not growth.
When I first saw your allocation, I thought it was an interesting idea: split between value/growth and go for a rebalancing benefit?
With what you have above, it seems like your going for a value-tilt instead?
As a side-note, I had my US equities split into similarly. About a month ago, I decided I wanted to simplify and went with TSM. This was after reading the diehards thread on the 'core 4' and backtesting a complete portfolio with these four funds compared to a portfolio with just TSM. In the end, there wasn't much difference.
I don't want to argue that you couldn't get a little bit more performance, but the idea of holding one fund was too appealing. Now instead of having to rebalance between my original 10-12 funds, I'm down to about 5-6 for the entire portfolio.