well if I had a chance to trade and i had 20BTC i am not just going to put BTC1 i'll do it BTC2 but as of now i don't have any choices of altcoin so maybe before i will choose an altcoin it's better to analyze first it's movements and activity, it price and the difference between it's buying price and selling price and of course the market or exchange . because as you've said "to trade safely" it's better to analyze everything on trading . and the other amount i would plan any investment for it maybe on ICO or i'll just hold it to my wallet .