My available time to research and monitor any particular company...

My available time to research and monitor any particular company is limited so I prefer to consider just a few, first I watch then if they manage to keep my attention I will buy in small parcels and may even sell some to get a real feel for the driving factors of a company. Yes putting your eggs in one basket is dangerous and you can get very nervous however if you never exposes your self to a bigger loss than you can tolerate the total gains will be far higher than average returns on ASX which is the problem of spreading your investments.