I have done the exact thing you are talking about (except with a magnum .46).

First, the 4* is an excellent 2nd airplane.

Second, go slow for the first few flights, it responds _much_ quicker than a trainer. In fact, most of my first flights with the 4* were under 5 minutes due to nerves.

Third, make sure that you have lots of fun, because this is a good one to fly. I was doing dives with low pull outs today, among other tricks.