Hi CM
The strategy you mention sounds rather like TMF's 'Beating the FTSE' strategy.
This takes a now very old fashioned index, the FTSE 30, as its base. (Sharescope will provide data for these shares, as will the FTSE site).
The thinking is that these stocks represent companies which have been around for years and are likely to be around for even more years, representing the heart of British industry, ie, they are unlikely to disappear overnight., and which rarely reduce dividend payments.
Having identified these 30 shares, find the top 10 in terms of current yield - which is said to identify the most currently undervalued stocks from this group.
Then, simply invest equally in the 5 cheapest of these shares for a year. Review at the end of the year and repeat the exercise (by keeping those still emeting the criteria and ditching the others to replace with new candidates).
(The Lite version is to select the 2 cheapest - and some suggest that it gets equally good results just picking the top 5/10 yielders regardless of price).
Currently the top 10 yielders of the FTSE30 are (with latest closing price):
SHP 403.8
RSA 292
P&O 279
TATE 368.5
LLOY 777
GKN 339
BOOT 718
PRU 687
BOC 1062
ICI 328.3
I think the principle is sound for a genuinely laid back LTBH approach, but my own feeling is that returns could be more efficient if this strategy were overlaid with whatever TA filters one normally applies else it can mean a long time waiting....waiting.... (though divis form part of the return, I know). TATE has been in this Top 10 Yields group for the last 2 years that I know of but is only now becoming an interesting subject for some. TATE has made significant gains in that time, true, but just look at RSA over the same period!
HTH
Weez