I don't think the template will make a difference in the end. You may want to read up on the advances being made in the AVISYNTH forum. A new filter called Blockbuster has been developed to add noise to video to get TMPGEnc to do a better job of getting rid of the blocks, more so than increasing the bitrate or CQ level.
As I understand it, in simplified terms: if there is a solid color on screen, TMPGEnc figures that there is no motion, and therefore should remain as a block, like nobody is going to notice. This happens mostly with blacks in regular films, and blockiness will be rampant in animation simply because there are more instances of solid color... especially Disney animation.
The idea behind Blockbuster is, it will add noise to areas that would normally appear as solid blocks, and from there TMPGEnc figures it has to put more effort into encoding that spot. Adding noise to DECREASE noise. It's marvelous if you ask me!
If you aren't using FITCD, I highly recommend learning it and applying the Blockbuster filter. You'll be amazed with the results!