Tyres with a triangular profile will naturally produce more 'slap'....

But for a track day, as the original post alluded to, giving an NSR some beans will produce some tank slap, at some point around a track.
_________________
Rich
MC21 Track Bike / RS250 NF5 'Spencer', NX5 'Cadalora' & NXA 'Aoyama' / RS500 / Two Brothers Racing RC30