Currently i am not using equal weight, but do it the way Lichello described it in the book. When you have a buy, you can buy any stock, Lichello tries to buy a new stock.
In the "What to feed your money machine" chapter of Lichello's book he advocates keeping your Bluechip stocks equally weighted.
For a UK investor with equal weights in (except for BRK which is counted as a 3 times larger weighting i.e. index of other stocks (that avoids withholding taxes as BRK pays no dividends))