The foam presses on the bladder and that's what keeps it consistent. Hot air builds up behind the bladder and changes ride height?? Seriously the air would have to heat over 100 degrees? Where does this added heat come from? There's no heat source that is aimed at the shocks and they can't build that kind of heat just from being actuated?? So where does this heat come from?

The biggest problem imsee with the losi shocks is that the bladder does not stay in place you can see this when you go to rebuild them the bladder is up inside the cap. This causes the shock to become inconsistent. With the piece of foam between the bladder and cap it holds the bladder in place and thus the shock becomes consistent.