One reason why I bought my TS100 was mostly because it is cheaper than the TS80. The only bad thing on the TS100 was the grip. With my improvement you have a slip-off protectien and a MUCH MUCH better grip. It is a musthave.
It is very easy to assemble and no post processing is needed.
I used a slightly longer M1 screw from the Partcoolingfan of my 3D printer, but the screw shipped with the TS100 will probably work as well.
The Iron WILL NOT melt the plastic!