You have to love Models with myth , The reality is their buckets of shite for racing and yes I have ridden them. One of my local club members had one plus XC 500's and would always protest that he could not holeshot on our baked out start straight back in the day. He finally worked out the problem.
I will say the same about the 81 KTM 495 which had the about the same HP plus related problems. Simply answer back in the day no tire could the power down. Fun for one lap and if thats your thing I get that , Power is fun and addictive. Everyone should ride at least one of these in there lives, Grin yes win no.