USDT is something built on promises that you will always get $ 1 when you want to spend it, so you have to trust their promises if you choose to believe, It is better to choose central bank than the company behind that currency.
The success of your strategy varies, but I do not agree with 30٪ USDT. Here's what I suggested:
1. 40% Bitcoin: For long periods ranging from two weeks to several years based on the profits you want to collect.
2. 20% ETH: If you want to invest in tokens.
3. 10% Monero or Dash: The future of high-privacy currencies.
4. 30% for daily investment: Speculation between Gainers & Losers here ---->
https://bitscreener.comi agree its better to have fiat currency rather than USD Tether.
when i said 30% usdt or fiat currency i simply mean for day trade .profit you can spend whenever you want (like if i am a british citizen i will go with pound as my fiat) because there is not a mass adoption of crypto yet ( which makes me sad) and people have expanses, which they can get through Fiat pair. $500 is enough for someone for daily expanses.
And another reason is when bears hit the market alts can fall like domino, which can make your total portfolio looks horrible.
please share your view, this is what i have learned yet.