Dear Micheal
We have a P120 in ours and it has more than enough power.
I think a P160 might be to much for it and might rip it to pieces.
Just a couple of things, have you strenghend where the wings go into the fus
we have used phenelic tube for this. We also have the CG 15mm behind where it indicates on the plan. One other thing make sure the retracts are working perfectly they have to come down
going forward right into the airflow. We use a pressure of 122psi.

Will you let me know when you have flown it and how you get on.
Best of luck with the first flight.
Regards Phil G.