I'm aware there are different springs available to upgrade or downgrade gearboxes so my question isn't about changing springs...
Is a brand new spring (lets assume an M100), power output (j's) likely to decrease over the first few hundred to few thousand bb's?
Asking as feel I need to downgrade a couple of my aeg's, some I can do myself by simply replacing the quick change spring, others I would need/want a tech to sort for me. If the new springs are likely to 'soften' over use I wouldn't need to do either.
Thanks in advance.