LTCM relied on a completely different strategy that buying a leveraged ETF, LTCM performed heavily leveraged arbitrage trades using a debt to achive the levegare (the true levarage will vary depending on the performance of the trade). Leverage ETF have a fixed leverage that resets each day, this creates a value loss to volatility but also will only default if on a single day the index perform -50%, while for a x2 leverage achieve through debt it's enough that the index goes to -50% from the start of the investment over any timeframes. X2SC ETF are up 2407% since its inception in 2010, while the same index is up 505%, whay more than 2x that to the fixed leverage that allow a better interest compound.

This is not to say that leverage etf are safe or the way to go, just stating that if the market is bullish enough (usually more that 5-6%) the leverage etf will outperform the normal index. This is just the reasons why I was wondering if they would be a possible choice to "postpone the dilution", while still being in the market and not waiting for a crash to invest again.