1992 Chevy Blazer brakes fade and feel spongy after bleedin

I've bled the brakes even more, gravity bled, vacuum bled with little handheld pump. Can't be anymore air left if that's what it is.

Made no difference, I tried another brake booster thinking maybe a vacuum leak in booster, exactly the same result

I don't think the brakes feel spongy like they did before, but now that I have been playing and testing them, it almost feels like the pedal doesn't go down fast enough or it's too stiff and sluggish. Like you can't get it to move fast enough stop quick enough. You can mash the pedal or apply steady firm pressure and you get about the same stopping force. Hard as I try, I can barely get one tire to almost lock up and I don't think it's the abs working because it's smooth. I'm believe if the abs is doing it's thing, the pedal and the brakes would vibrate or do something similar.

I may try to completely eliminate the abs and have the lines go straight from the master cylinder to the wheels, with maybe a junction block in between. That way I would know for sure if it's the abs module not working correctly or bleeding pressure somehow.

I can jump pins easily (and safely) if I knew which ones to bleed the abs.