Kerberos32,

I think the Twist would be fine as a second plane. It was my second plane, I have about 20 flights on my twist, take all the advice given here already with making sure that the control throws are at the lowest RECOMMENDED settings. The Twist will fly completely different than your trainer, and it will be very easy to get into trouble fast if you have the controls set to high. Take the first few flights very careful, and enjoy the twist.