Testing Warm and Cold C02! How Much Power is Lost? (Ban State Tactical)

We're putting two identical launchers over the chronograph with identically weighted projectiles, there's just one catch: One of these has been carried on my body while the other was placed in a freezer! How much speed, AKA, power are we going to lose from our 2.8 gram aluminum rounds? The results won't be shocking, but the quality control and reliability of these launchers will be!