The K truggy is awesome, is old model but still gets podiums and it can compete with the other truggies . All models are good you just need practice ,practice,practice and to find your set up,
I have raced in a lot of races at national and at club races lot of podiums with my ST-RR , i came 2nd at the championship of the one club race track .the first guy again with ST-RR , the national champion here was again ST-RR
In my country the only truggies which race are Losi,Mugen,Kyosho no other brand! and i think two xrays ...
Now i will sell my Kyosho ST-RR because it needs a lot of changes after 15+ races (i DNF only at one race because of broken tank ) , i will buy for 2011 again a ST-RR kit...
i am loving it