APEX deflation valve

I am sure many of you just like me, have try many different way to air down the tires. Some may already use APEX, but I just start using them, man I love it! Before that I use all top tire deflator it will remove the main core, it also nice to have the gauge attach to it, so I know the psi right the way. However, some people say removing the core too many time may damage the o-ring on the core, and start have slow air leak. I never had this issue. but I want to why something new, and found this Apex and starting using it on my last trip. wow, is more convenient.
To use Apex deflation valve, all I need is remove the cap and pull the red knob, the air release right the way. I will have to pre-time and record before I head to the trail. for example, from 38 psi to 25 psi is about 35 sec on my case. and 42sec to 20psi. this is what I use to run. Next time, I just use the same formula should hit the same psi i need.

Apex had two versions. This version is call rapid connect valve, no need to remove the tire for installation, it just screw on top of the stem. To me is better, if I sell my car, I can take them off and install to a new car. however, it sticks out 1/4" from the rim.
Other version needs to remove the tires to install. Don't know the different ,maybe it release air even faster?