Some & not all early cars suffered with bump steer, mine was one of those but following a chassis change & even though the steering mod wasn't included the bump steer disappeared.
Bump steer was a bit of a worry and you had to maintain a grip on the wheel but the drive was always totally exciting. People have played around adjusting the steering to regain that responsiveness of the very early cars but as with all things is a bit of a compromise.
We're looking at raising the back end slightly too.