Got the Prolog done a couple of week ago, and it a great flying plane. First flight took the basic trim and small mix on down elev to low idle.
Heres the wieght final ready to fly 4749grams.
Break down

Fuse 2676 ( Pletty 30-10, Castle ice 80, arming plug,volt reg.,rx switch,trutrun spinner ,Rasa prop,and all servoext, rudder servo,ect)
rh wing 393g (Jr 8411 servo with 6 in ext)
lh wing 390g "
wing tube 60g
sub total 3519g

rx battery 40g 800ma
10s pac 1190g
Total 4749g

I use standard hardware didn't go out looking to save any wieght. Use Jr's 8411 servo on rudder and wings,3421 on the evl.
Plane was easy to built. Rolls with this plane are effortlessly, had an FAI pilot fly it and he said that he could fly p13 as it was set up.
I will ahve some pictures latter on of set up.

Jr Varela