Crash90; I am using the service of the site you posted. KrisW from the other forum. It's not exactly the same thing as PatrickP offers. From what I understand PatrickP has a replacment for the reed block made from aluminum. While this may be a great fix its different than what KriwW is doing. With KrisW you send him your carburator and reed block and he does a modification which is tested on one of his 115's.

This is a quote form his post;" I will need is your inlet tract, including all gaskets and bolts and carburetor. Leave the engine on your plane, just unbolt the carburetor, take out the 4 bolts holding the reed and spacer block to the engine, and send those parts in. I'll modify them, test run and tune them on my own 115, and ship them back, ready to go, with a small tuning cheat sheet so you can adjust the carburetor for your altitude"

This is what I choose to do. I like the idea of a tested modified part that works on a 115 coming back to me to use on my 115.

FYI
Tony