Hi Croesus,
You could take a look at Saul’s knowledge base to get grounded and more information on his returns. He has modified his approach through the years, but its worth a look:
https://discussion.fool.com/knowledgebase-newly-revised-part-1-3…
As for the allocation, it sounds to me that DG is shifting towards a more concentrated portfolio from his recent Rulebreaker podcast. Strictly speaking, he said that he would not initially invest more than 5%, but would add to the stock later with further positive developments.
Now for your comment:
I actually have kind of a lot invested (well, a lot for me), so am not in the mood to experiment too much.
Investing is a lot like baseball. Nobody bats 1.000. The best you can do is study your opposition and prepare yourself to hit the pitches well. There are no “sure things” so we all have to develop the disposition to take wins and losses in stride. To get started, maybe you could build an imaginary portfolio with 12 - 20 stocks, and see how the stocks did and why they did what they did. Maybe, you would be more comfortable after that. Another, thing you can do is split your money 3/4 in an index fund and a 1/4 in individual stocks. By starting small you might be able get more comfortable with independent stocks.
I hope this helps.
Best,
bulwnkl