We have tried to use a fuel mix that is good for everything and most of my flying associates use the 10 / 20 / 70 mix. Thats 10% nitro, 20% oil and 70% methanol. We don't fly alot a the moment so we don't mix up any more than we have to. The racing planes are not allowed to have nitro in the mix over in Oz so we try and keep everything as simple as possible. These planes can skip along at some fairly high speeds but once you have the plane trimmed in by a qualified instructor it should be ok. When you set it up make sure your control throws are set up in terms of the instructions. For the first couple of flights you have see if you can set up a buddy box so if you get into trouble you have a very experienced pilot to help you out. I fly with fairly conservative movements on the control surfaces, my son has everything set as wide open as he can and I find his plane very twitchy. Nothing wrong with either set up just depends on how you fly. If you set up dual rates on your radio you have the ability to transform your plane from a mild thing to a wild thing just by flicking a couple of switches. We found that the plane is very stable in the air and will perform all the moves without any drama. My son regularly takes off and inverts the plane about 10 feet off the ground and then flys circuits with it upside down. Scares the living daylights out of me but then I have a few years on him and don't react as quickly.

As for your antenae I usually bring it out of the side of the plane (opposite side to the muffler) and then run out to the vertical stabilizer. Have never had a problem with this method, just make sure you have a piece of plastic tubing about 3 inches from your receiver to aviod having the antenae ripped from the receiver in an accident. I always run a small piece of plasting tubing out the side of the plane to help protect it as well. I am swithching ever so slowly to 2.4ghz radio so the arial is no longer an issue.

I haven't seen a Tucano at the hobby shop in Oz, I will ask next time I am down there