The gears become too tall to climb, hurts acceleration, etc.

 

Oh okay. I personally don't see an issue with the 4.11 FD on a higher HP/tq car though.

 

Do not do a 4.9 FD. The stock final drive is great for all around. I would only do the 4.11 or 4.00 on a 2.0 if you are doing standing mile Racing and only with the EVO8 1ST gear. Any longer stroke motor will benefit from the 4.11 or 4.00. If you live somewhere that you can go over 150 on a regular basis you would definitely want the taller FD even on the 2.0. Most people are best served by the stock FD.