i dont have this buggy but i do have the CR T(ruggy). its the wrong question u ask for weaknesses in its own thread. u shud ask for the Pros not the Cons ... or u will get the obvious answers .... u know what.
Mate, just check the worldwide result. do the X1 better or the other buggies? Even your Ian Haley,ok he's an australian. he's driving the HongNor X1 CR buggy & also the truggy, same as Jammin(USA). and he's winnning everywhere he goes. i cant say the other buggy u mentioned... but they too got the pros n cons.
since u ask in this Jammin X1 thread, well the obvious answer,
GET the X1, FORGET THE REST! 