I thought jump istance rely on Str only ... aka 8Str Drow jumps as far as 8Str Halflinh O_o
Anyway there is item that could help you:
on top of mage tower ypu can find stole(?) ... if you break it you can take one leg as a Club ... and that sets your Str score to 15

I still dont understand why cant we change Race for our hirelings. frown
Lets us play Githyanki as racist as they trully are! frown