what I really want on long vol spreads is about a potential 8:1 or better net out. With volatility looking like it will bottom again, I put on wide call spreads with the short leg on a 00 or 05 - those strikes are where the best liquidity will be, so your bid values will come up, making the spread debit less. UVXY is a wild mofo and you never know what might fill. I have filled $1 spreads for as low as 3c.....
"If The Fool persists in his Folly he will become wise." - William Blake