The X11 is really impressing even in the colder weather lately.
Windsor
10.5bl 3.7v lipo
High grip
35sh f/r
Hard front springs
Pink HPI rear spring
SMA
4.5bl 3.7v lipo
Lowish to Med grip(outdoor, cold)
32sh fr 30sh rr
Kit front springs
Pink HPI rear spring

The car seems to work well high or low grip. One thing worth noting is there is NEVER no rear grip