wxa7115 - wow you are a safe player!
Personally I am too greedy to only have 10% of my coins in higher growth potential coins. As I only invest what I can afford to lose, and reinvest some of my profits (so I am very relaxed about the price of these investments dipping) my risk appetite is higher I guess
The best thing though is to have a strategy and stick to it. People can disagree with the exact percentages all day but the strategy itself is sound