I'm very much enjoying reloading as a hobby and don't want it to become a task, so I don't worry about speed. I use a single stage press to load no more than 50 rounds at a time and have a six step method for dropping and verifying charges:
1) set up primed and flared (if needed) brass mouth down in a loading block
2) place a case on the scale pad, zero the scale, charge the case, weigh the charged case, repeat as necessary until the weight is just right
3) place the charged case in the block, mouth up of course
4) repeat steps 2 and 3 for the next xx cases until the charge is exactly right as dropped
5) charge 5 or so cases without weighing
6) for every 5th or so case and verify dropped charge is still correct via step 2.
I keep doing this until all the cases are charged. I suppose it sounds tedious, but it actually goes very quickly. When I'm done all the cases have to be right since they started mouth down and are only turned after being charged. Still, before I place any bullets I stand over the block and visually verify that every case looks right. That's two separate checks to ensure every round is properly charged. If any case ever looked wrong, I'd dump it recharge it per step 2. But none ever has using this method.
If I'm just doing a few rounds, or I'm using a powder that doesn't meter well, or if I just don't want to change the powder that's already in the hopper (usually Bullseye), I just dip the charge into the scale pan and funnel it into each case, still using the mouth down method. The final visual check for bottleneck cases is accomplished with a flashlight.
My track record so far is zero squibs, zero doubles.
There's no better way to get correct charges than to weigh them and see them. If I ever decide to get a progressive press, a powder cop die or a lock-out die will be in one station, but that takes away separate weighing and seeing...
So I probably won't.