That cam specs at max lift with 1.50 rocker ratio has less than .500 net lift, correct?
If so run either set of those springs and make sure to run the motor above 1500 RPM for the first 30 minutes
I've broke in a lot flat tappet cams, both solid and hydraulic lifters with less than 350lb. open with no spring changes or bad results . The key is to make sure the motor starts right away, NO grinding on the starter
Don't let it over heat also, I shut it down above 200+F and let it cool down to 140F before finishing the break in runs