I already mentioned this so many times, do not long tza or whatever 3x, if you really want to short the mkt, short tna, if you want to long the mkt, short tza....
Holding 3x ETF is not a problem, holding the right one at the right time is the key. I have been in-n-out TNA for the last few months, first in around the 40s and out around the 50s, then in around the 50s and out around the 60s, currently in from the 60s.