My race 2.0 buggy has all the lightened losi parts on it and I can tell a little difference from my buggy that is stock. The lightened one seems to accelerate faster and is quicker all around. Seems to handle a tad bit better overall.
On a seperate note how many of you with adjustable hinge pin braces run the 1's up front like Drake does? I put all 0's in mine to keep the stock setting. Just curious what changing the kick up really does.