I have asked someone in the discord chat and I also want to hear from the WBO. Recently I have bought a tN to replace the one that I gave to someone as sort of parting gift(tN 3.H. A). I have noticed that the new Ul is a bit more loose to the first Ul. Someone in the discord chat told me that the stronger spring activates the reboot faster and is it true?

Loose in the tabs, or loose in burst resistance?
If the stronger spring is in the tabs, it activates faster. If the stronger spring is in burst resistance, then it will only affect burst resistance

Read the last sentence. It’s th tabs.