Thanks for the advice everyone. The reason I am wanting to go with 30% or so bonds is because I remember reading on bogleleads that a general rule of thumb is to stick with "your age number in bonds". 30 just seemed like a solid number to start with. I'm glad I'm changing this NOW. Since I've started learning more about investing, I was able to see that my current fund selection may not have been the best idea! Aftering reading the advice given thus far, here's what I have come up with.
Vanguard 500 Index Signal .05 STOCK VIFSX 50%
Vanguard Developed Markets .10 STOCK VDMA X 20%
American Century Inflat-Adj Bond Instl .27 BOND AIANX 30%
If this is a solid choice, I'd like to start contributing as much s 25% of my paycheck to this 401k.
I do think this is a solid choice. AA (stocks vs bonds) is personal for everyone and don't feel pressured to lower your fixed-income percentage beyond what you're comfortable with.
I'll say again that rather than this exclusively for US Stocks:
Vanguard 500 Index Signal .05 STOCK VIFSX
50%I'd broaden this out how wtjbatman or I mentioned earlier. Do either this:
40% Vanguard 500 Index Signal
10% VSISX (Vanguard Small Cap)
OR
35% VIFSX (Vanguard 500 Index)
10% VMISX (Vanguard Mid Cap)
5% VSISX (Vanguard Small Cap)
These choices come closer to replicating a total stock market fund to capture the complete returns of the US stock market.