Arex Alpha hammer spring weights

[Eargesplitten]

Does anyone have the spring weights (bonus if you have uncompressed length) for any of the Arex Alpha hammer springs? I've got a TZ-99, which is like the South African cousin twice removed of the Arex pistols, and I like it a lot aside from the hammer springs being comically stiff. Pull is smooth but very heavy, cocking the hammer by hand is about as heavy as a stock Taurus revolver. I'm wondering if the springs from an Alpha would fit as a cheap little upgrade. It's not a competition gun, just a fun range gun.