We have used them in testing and I like them better then the yokomos because you really had to go in carrying speed which made the experience much more realistic rather then the hard plastic tires which look so fake as you slowly hover sideways. I will admit the Plastic is easier but the HPI's are far more rewarding.
TEAM ORION - AVIONICS - KYOSHO - KO PROPO - PEAK
"Racing is about the journey not the destination if it wasn't it would simply be called Arriving"
"The solution is people need to spend more of their efforts on promoting and finding more people to race with, rather then a personal quest to form a class that they can win at."