In short I totally know where you're comming from. After 100's of hours in a 152 I go up for a UPT interview at a KC-135 base. They have a full motion sim. I took the right seat and it kicked my butt. I kept stalling on final! I had no control over airspeeds or anything. I was trimming like crazy and screwing up the cofiguration so bad. I'm sure I left a great impression on them lol. But I know exactly what you mean a Jet compared to GA there is no comparison. If and when I get the "go" I'm going to have to basically start from scratch and learn it that way.