Tried both the 7.5 deg castor blocks and new in-line steering arms today indoors at Rd 1 of the Telstar Winter Series.
7.5 castor blocks gave a very even steering input from turn in to exit. This enabled me to run new front tyres on what was in places a very high grip track, by taking the razor sharp turn in away and then giving more grip mid to exit. In-line steering arms also had a positive affect on the front end giving a very "connected" and even steering feel.
Both parts felt better and proved so on the watch, looked the business also
.
James.