Thank you all. I notice that expert advice can vary. I did notice that a lot of experts in the field tend to advice on modifications or try to do maneuvers that trainer planes were not designed to do. As soon as that expert started to fly my PT40, he tried to make a roll but that plane is not good at rolling for it tends to get back to its original position.

I will put back my foam on the wing sadle and adjust the throws to the level suggested by the manufacturer for my first solo landing this weekend. And maybe after, as you guys suggest, I may make some modifications one at a time.

You guys have been great. I appreciate it.

One last question: is there a book considered the bible of R/C modeling? In my other hobby boating, we have one that has been around for decades and cover in detail from A to Z. I assumed RC may have one too.

Thanks,