Why long Euro? Why short Treasuries? On what timeframe?
Monthly, I trade 9 year ranges. I am that trader who sells highs/ buys bottoms, hedged beyond futures' losses, I take many attempts to find extremes, at least automation does, but did it manually for many years. No losing years for 30 years. I use monthly, weekly, daily and fine tune intraday charts. Yearly, 1 to 15% winning futures profitable trades, hedges now makes me profits overall when futures lose, occasionally both loss.
Leverage does not scare me at all, but if I used exchange margins, would have to increase options, I don't want to go over so much % of open interest.
Main ES day trading system averages 82 trades a day. It does 300 cars a signal but when one minute bars get too small, trading stops till range increases. It scalps and losses under 5%.
I have four option systems, losses 1% and less, some trades last couple months or couple days.
I don't do much manually trading, just concentrateing on sound charting. Been doing 44 years, many patterns I use are not in books.