Yes it does, but first let us ride the bike and see how it feels before making any changes. Bear in mind that if you have installed new seals it will take a little while for them to break in, seat, and loosen up. There are valves inside the lower ends of the steel fork tubes that work in conjunction with the oil to control the fork action. Some of the later Harley forks use an internal cartridge damper, enclosed and sealed, that additional oil does not affect.
George, Helicopters are too complicated for anyone to understand, how Igor Sikorsky ever got that idea off the ground is beyond me, but a Harley is much simpler, more like a glider with a pusher motor attached.
I used Belray fork oils to tune my 1990 FXST fork with progressive springs, but it's still neither a Corvette nor a Cadillac in ride and handling qualities.
Best wishes, and have fun....RD