What we are dealing with is called a Moment Arm. The rod itself is a fulcrum. When the balance point moves away from our wrist a moment arm is generated (Torque) and grows larger the further it goes out to our disadvantage. Think of it this way - your wrist is a lug nut, the out of balance fly rod is the tire lever, and the further the balance point goes away from your wrist the longer that lever becomes. In this case - Torque is a product of Weight multiplied by Distance. The weight stays constant in our case, but the distance grows further away.
Simply put T = W x d
There's three things you can do from what I've gathered....
1. Tear off the existing real seat, and cork handle. Rebuild it with new parts so that your grip falls nearer to the balance piont, but this would negate the added length of the nymph rod.
2. Add a heavier reel or add weight to your reel. And it's been mentioned what the disadvantages are.
3. Add a bit of weight on an adjustable end. Ideally, you want it to be adjustable, and if this could be automated - it would be the Excalibur of fly rods.