Dual tire pressure equalizer - Anyone use them?

Dutch_12078 wrote:
Crossfires have check valves to prevent rapid deflation in one tire from deflating the other tire, however, a slow leak can deflate both tires over time. Best bet is to use a TPMS with a Crossfire installation to minimize that risk. Of course a TPMS is a good recommendation anyway, with or without the Crossfire setup.

WRONG! You buy Crossfires that are set for a certain tire pressure, like 100 PSI. Then if one tire gets low, it will be isolated as soon as it reaches 10 psi below the set tire pressure. There is no way that BOTH tires will deflate unless you have a blowout or nail in BOTH tires at the same time. From their instructions:
In slow leak situations, the valve isolates both tires after a pressure drop of approximately 10 P.S.I.