Running in new tyres

Hi,
Just got new Toyo Proxies T1R to replace my aged Yokos. Incidentally I got 195/55 to replace the original 185/60s. They fitted perfectly. Got them from Camskills & had them delivered to (& fitted by) www.thewash.ie, near Sandyford for E12.50 a corner.
Anyway, the brother (who knows a lot more than me about cars) tells me I should run in the new tyres for a coupla hundred miles before starting to chuck the car around.
How long do you run your new tyres in for?
Simon
Just got new Toyo Proxies T1R to replace my aged Yokos. Incidentally I got 195/55 to replace the original 185/60s. They fitted perfectly. Got them from Camskills & had them delivered to (& fitted by) www.thewash.ie, near Sandyford for E12.50 a corner.
Anyway, the brother (who knows a lot more than me about cars) tells me I should run in the new tyres for a coupla hundred miles before starting to chuck the car around.
How long do you run your new tyres in for?
Simon