Hi there Black s,
I had a Herrods cam, and full exhaust fitted a few months ago, and on the weekend i disconnected the battery to work on my stereo...
after reconnecting, and therefore resetting the computer, I was told to drive the car HARD for the weekend, to get the eecv to learn the optimised fuel delivery for the cam..so I spent the weekend fanging it around town
it took around 200ks for the computer to settle..
without a unichip, the idle will always be a little rough, it hunts a little bit, but it doesnt bother me, as i was told by herrods that when they developed the cam, if they tuned for smooth idling, they lost performance..so I can live with that.