It sounds like the Jet Tronics valves are good. I think I will go with 1 for the retracts and I will use a servo for the brake valve. I used the BVM epoxy to build the model. I love this stuff. I also made carbon fiber plates to mount the retracts. This set up should be very strong and light. I am shooting for less then 15lbs with fuel. Do you think I need the 2 smaller conformal fuel cells, or can I get around 8min with the lg tank and the BVM uat? What controls dose your f-18 have? I am thinking of going with just the (elevons???), NO= rudder/flaps/ali. I will post pic soon