For me; that would be the H9 Cap 232 25% plane. I
had one. But a failed Hitec servo on the rudder caused it's early death. Stupid Hitecs.
Mine weighed right at 12 pounds without fuel and balanced just
slightly tail-heavy. Aileron rolls were very axial and snaps were crisp and predictable with no overrotation.. I miss that plane. If I ever build another one; I'd use a gasser.
As for the JR servos. I couldn't be more tickled.

I'm using the 4131's on ailerons and the low profile 7005's on the elevators with a single 8411 on rudder and I'm searching for a cheaper coreless JR for my throttle.
I'm absolutely amazed at the difference in the coreless servos when compared to a typical standard or analog servo. It's totally worth every penny to have a nice servo that centers well and has plenty of torque to boot.
Good luck with the fiesta.