I will say this:

If you are good with your trainer, you will LOVE a Tiger II or 4*

While they CAN be faster, they will also fly very well at the speed you're accoustomed to.

But the really nice thing you will find is that they go where you point them, unlike your trainer which wants to fly in a straight line.

You see, because your trainer is so stable, you have to fight against the self-righting tendencies oit has. But with a 4* or Tiger, when you bank the wings, they stay banked until you straighten them out.

Some people take a while to get used to this, but most pick it up right away (And LOVE it!)