If the OP is a newer reloader, I'd say K.I.S.S.. If there is concern about double charges, develop good safe practices now, and make them habit. I had a squib early in my reloading (1970) and since that OOPS! I have looked in every case I charged with powder to make sure there is powder in it or if it "just doesn't look right" (a charge level different than the others, I'll dump it and recharge). I have a built in, hard habit to look in every case before a bullet is seated...
If the concern is "charge efficiency/volume of case fill", then check your manual and the powders with the largest charge, weight wise, fill the case better. Nosler reloading manuals also give the % of case fill with each load...