csaddict...go with the titanium screw set
3racing has a nice set for the tb-03 on ebay for about 30.00
In the ebay search box type in : TB-03
not tamiya or any other words.
you will find close to 400+++ hop-ups from many sellers.
There are about 10 different screw sets but the 3 racing about (30.00)is my favorite after the tamiya brand set.(about 45.00)
I have tried several brands for different cars.
Goodluck, Fat