If I understood Clive correctly, then 20% would go towards your AIM cash, whatever you currently use in a typical AIM program. my choice for 20% cash is because 20/80 AIM behaves much like 100% stock based on my testing.
The A+ corporate bond, HSBC bond and in my example also TIPs would all belong to the 40% allocation. Call this the enhanced bond.
That is not to say that you cannot hold the same bonds or bond funds in both locations, i.e. the 20% AIM cash or the 40% enhanced bond portion.
I am really intrigued by this method and it seems to me that it can beat a 100% stock with less risk.