here... another vid, too... and i turn the screwdriver to the wide side when popping seals out, but typically leave the seals in to avoid damaging them...
to TEST my work, i spin the wheel , then lay the axle on my fingers, but don't pinch-hold the axle ends... if the wheel spins ok, without the axle turning on my fingers, it's good... if it turns on my fingers, then i need to loosen it a touch... I check for play by tugging the axle to one side, then wiggle up and down... no play, no "spin" on my fingers?... put it back on the bike, and ride! ANY glitchy, notchy feeling? it's either still dirty, or you missed a pit in the cone, on a ball or three, hub race surfaces, or the axle is bent... spin the axle while watching the ends... ANY up and down motion indicates a bent axle..... SOME cheap chinese hubs actually have THREADS that were cut so badly/sloppily that the cone/jam nut interface allows the CONE to become off-centered! those same hubs come from the factory with next to no grease, and sometimes with the cone/jam nut torque so loose that the cones will back off! seen it way too many times..... sigh...