It seems that those that are placing the 50cc engines in this plane are doing just fine with them....
No Wing failures that I am aware of, due to too much stress caused by a larger than suggested engine....

I had purchased my 40 for a pattern plane set up that didn't materialize...... As I don't think that many people would pay the now 600$ engine
I guess though It all depends on what you want.....
If you want the Lightest most competitive setup, it is the way to go if you are racing these planes.....

Our economy is in the toilet right now, so I really didn't feal that I missed out on much.....
Some of those drives to attend the races would have cost me over 500$ just for gas to there in back...

Not to mention the entry fees....

I hope things do turn around soon though....