I have finished playing with the wife's trigger for the night.
I'll comment more in my Member Build thread tommorow but with the right springs you can have a 2oz blade and a 7oz total pull with the standard trigger.
I could get lower but was really unstable so went back to 2/7.
Light blade, decent step up to trip the trigger and no false trips.
I also came up with a shim method that is a little more stable.

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I really like the CHEAP Digital pull gauge I bought.
Reads to the nearest tenth of an ounce starting at 1.7oz.
From lowest reading up to about 3 pounds it calibrates (with dead weight) to about 0.1oz.
Has Live mode plus Peak/Avg mode. Is a real help juggling blade and trigger spring force.
Unless you keep your finger calibrated, measuring spring force just makes good sense to me.