I also have a 5" Lst2 about 2 yrs ago just like the Fd design because I had a guy tig welded a 5" plate behind the rear part of the chassis. It was okay but I wasn't experimenting with the muggy shock towers at the time. Now I have a 61mm extended in the front and that one handles pretty good with the batts in the front. Very controllable wheelies, 1527 1D, 6S MA batts, 34 pinion . I will be changing my combo as I could not have an ESC without
going on fire due to too much amps from too much gear.