in terms of work flow -
if you're not single dosing the grinder, I'd assumed you had to decant the ground coffee from the grinder into the basket, since you wouldn't be able to grind a particular
weight accurately enough, stopping the grinder in time (so over/under shoot), unless its a grinder with inbuilt weighing like the settes.
although, perhaps you can get +/-1g accuracy, if the grinder is not too fast.
is your basket the correct size for the pf you have?
Ridgeless ims 18g competition(un-competed so far),
after much ooming & arring back down thread ... so, more susceptible to self ejection into the bin.
After I've dropped the pre-ground single dose in from the grinder hopper, before tamping, the coffee is usually peaked above the edge,