Hi, I got the chance to purchase this rare item which i understood Tamiya had ceased the production. Its a super hard arched tires meant for large dia wheel. is this set of tires only good for fast cornering given it is super hard + arched both pointing to low friction ? Are there any more super hard arched tires by Tamiya ? I also understand there 2 downside - (1)Arched also means it tend to bounce a lot upon landing after a jump (bounce can be reduced using aluminium wheel) (2)high center of gavity means car will tend to fly out of track (stability can be enhanced by having front roller pointing downward 3 degree or more + placing front roller further away from the front wheel ) Is my understanding correct above? Thanks.