Looking to try a shorter length in my driver to try to improve consistency, I am putting the stock 910F Kai’li 75 shaft in so this should make the playing length 43in (not sure if this changes in a driver head or not).

How much will this likely affect swingweight, and if it does, what can I do to match it back to the factory swingweight and what sort of effect will this possibly have on the driver performance/feel?

This is also a test to see if the shorter shaft will work better, from there I will most likely shorten my GD Tour shaft currently have in the driver.