>>>>how do I know when I should adjust those setting depending on the market?<<<
NEVER!!!!!!!!!
Once you pick your settings you "SHOULD" stick to them. Otherwise you are introducing emotion in to your trading and defeating the purpose of AIMing!
My fund recommendations are all you need till your account is large enough that you can still keep your trades large enough when you split a fund. For instance EFA could be split in to a China, Australia, Brazil, and India fund (yes very different investments but still foreign) Large Value can become Large Growth and Large Value. Or add metals
Toofuzzy
Take the road less traveled. It will make all the difference.