the PBS vs. traditional knuckles are a bit thick and slow on the turning but are nearly unbreakable. this setup is synonymous to the mugen.
if your going to get the hyper, wait a bit for this:
http://www.ofna.com/hyper8.html
http://www.ofna.com/movs/hyper8.mov
http://www.ofna.com/movs/
smart design by coleman. sideways steering servo ensures zero rub on servo body, better balance and lower center of G. even the gas tank is thought out for 20-30 minute A-mains. i saw my pitman reaching in looking for the fuel lid. lost about 5 seconds of time on that with the traditional tank design. had to pit 3 times. keep that in mind.
the hyper, when racing or bashing, is sturdy and hardly ever breaks. the kyosho on the other hand unless upgraded with $200 worth of fioroni or after market components, is built to be light for racing. the shock towers will bend. if you don't get the sp1-2 kits, the chassis will bend as well.
when test driving the 9.5 pro i found the kit heavy, and slow on turning. even with some serious tow out on the front with a 200oz steering servo. i wasn't impressed. some footage of the 9.5 in the middle. first orange car is a kyosho kanai 1.
http://www.unethkl.com/rctrack/Aliso9.wmv the 9.5 comes with the force .25 engine i believe. that engine weighs about twice that of the C5 rody seen on the kyosho. weight is key when jumping, going into turns and coming out of turns. momentum will put push your car to the outside of the track on turns. look how tight colemans kit turns.
the kyosho is great for serious racing. by serious i mean you plan on spending upwards of $2000 for your kit (sp2), servos (aitronics 94358, or new hitech titanium series, 333oz.), radio (mx3 and up), modified engine and pipe (WS7 II, C5 BB or nova rosi p5 modified - 086 pipe or jammin), starter box and accessories. the kit components are refined, well thought out and superbly machined. you can see the difference in sensitivity between kits on the track. the kyosho takes a bit longer to learn to control than other kits. (very sensitive).
note: keep in mind that coleman normally uses torsion diffs front, center and rear on his prototypes. performance on his buggies out of the turns will be more aggresive than the average stock or pro kit.
if you go with the hyper, be sure to get the PCR pro kit. the upgrades are worth it. as soon as this one comes out i will buy one and run both kyosho and ofna, and see what's up.