Oh okay, thought I'd ask. Apparently I'm e-famous and have my own thread on FFXIAH for "e-peening the official forums". I'm not sure what you mean, though. Drakesbane is a 4.0 fTP 50% STR WS. So, let's assume you have 200 STR in Abyssea, you're looking at 85 WSC to add to your base damage of 133. You're still getting way more out of the base damage of your weapon than you are from WSC. If you have less than 200 STR, the gap widens and you gain even more from your weapon's base damage than WSC.
Edit: In the above scenario, every 1 damage you add to Gungnir (90) is a .5% increase in WS damage. Not horrible, but better than the equivalent in WSC.