I have had 2-4* and they are as stated wonderful planes, BUT they are not a prep for a bipe. They float all day and do not have the drag on approach that a bipe has. You can cut the throttle to idle and float a 4* in like a trainer. On a bipe you have to keep up air speed or you will stall and drop like a stone. I have 4 Bipes in my hanger which are a Sig Hog, 4-40 Bipe- Airomaster Too and a Ultimate. All need certain input to fly that are nothing like the 4*s I had. I am not saying the bipes are hard to fly just that a 4* dosen't give you the practice for them.

The DiBo