With an ultralight striker and a spring with more snort all your doing is robbing Pete to Pay off Paul.
The mass is still there, only now its suspended and free to buzz after each shot.
A certain amount of impact energy is required to deliver consistent ignition. General Hatcher back in WWI did all this research (Hatcher's notebook) and it hasn't changed in the last century.
What I can tell you is in 2003 I watched a US Palma Team member during a practice at Camp Butner start stringing from one end of the 8 ring to the other due to a change to the fire control on a RPA Quadlock action. He went with a custom made wiz bang spring and striker. This session served as a really good test tube for me as it was about as controled an environment as a guy can hope for.
We had that day:
20+ of the best long range marksmen in the world present, about a 1/3rd of which are coaches as well.
20+ of the best long range rifles in the world present
Several thousand rounds of custom tailored ammuition fitted for each rifle present
A known distance
A given set of conditions equal to all shooters present on the firing line at any particular moment.
Sudden alarming changes in performance can be intelligently reduced to just a couple things at this point:
Shooter fatigue. (it was 3 in the afternoon during this particular session)
When the factory parts were put back it, he went right back to making little holes all over the X and 10 ring.
Go do the research yourself. Trace archive photos of Camp Perry 75-90 years ago when the 03 Springfield action was the reigning king on Rodriguez Range. Take a look at the targets. 03 SF actions have a lock time that's measured with either a calender or sundial when compared to the hot rod sexy stuff out there today. The groups aren't all that different and I'm betting if I built a rifle on a 03 action today the performance increase would be because of better barrels, ammunition, and understanding/application of marksmanship fundamentals.
Wheels are still round regardless if you make the rim 20" with 2" of rubber or 15" with 7" of rubber. The only difference is ride quality and how many chicks you get.