I'm not sure White Labs will fix your FG problems, ensuring you have the proper cell count of viable yeast for the batch you intend to ferment would go a long way in preventing stuck fermentation.
Regardless of the statements on the websites and packaging, vials and smack packs are giving you less than recommended cell counts (Dry Yeast is too if rehydrated improperly/not rehydrated).
You should be making a starter for the majority of your brews. It's pretty simple, you don't need fancy lab equipment, just a growler, malt extract and some tinfoil. Tons of threads around here with info on making starters.
Regardless of the statements on the websites and packaging, vials and smack packs are giving you less than recommended cell counts (Dry Yeast is too if rehydrated improperly/not rehydrated).
You should be making a starter for the majority of your brews. It's pretty simple, you don't need fancy lab equipment, just a growler, malt extract and some tinfoil. Tons of threads around here with info on making starters.