I have improved critical: piercing.

On mobs vulnerable to con damage I use: main hand - +3 keen rapier of puncturing; off hand - +2 wounding dagger of greater undead bane (doubles as a wounder, and undead damager)

The question is, would I do more con damage with a +4 seeker (+2) silver short sword of puncturing in my off hand than the wounder?

Like i said, i have improved crit. I do enjoy doing a point of con with every swing in my off hand, but I never crunched the numbers to see if the short sword would do more.

If anyone has experience with this, it would be greatly appreciated