The premium (or cost) for Solstice flares is pretty easy to eyeball because there are two markets live: USX and eUSX.
eUSX 7D trailing APY 6.34%
eUSX implied APY 7.30%
15x flares cost = 0.96%
USX 7D trailing APY 0%
USX implied APY 4.88%
30x flares cost = 4.88%
The only caveat, is that eUSX underlying yield fluctuates, the 1D shows 5.47% and if it were to drop that low than itโs more closely priced to USX flare cost.