Youre not that old that you are dribbling everywhere!

Actually yeah the high torque servo saver is much better than the stock plastic thing it comes with, which i think is pretty bad. I never used it on the M05 i think one of my cars has a kimborough servo saver and the other was the m05 pro kit which i won so it has the high torque servo saver.

Not sure if you need the alloy horn though :P

Yeah the tamiya aluminium is better than the rest of the stuff out there, but of the aluminium parts which come in the pro kit i think the only usefull upgrade are the knuckles.

If it came with an alloy steering rack i would suggest the pro (and i think its really disappointing that the pro doesnt have those parts).
But to each their own