RE: weight VS stability
Well then, it seems my advice to getting a good beginner plane is wasted on you. As far as a nice stable flyer, I would have to recommend the parkzone T-28 Trojan. I used to have one before I accidentally crashed it into a tree, but I miss that plane because it was so much fun. It is very capable of aerobatics, I had mine down to being able to knife edge the whole length of the field in just a couple of months of flying it, as well as very forgiving if you do have a crash. I broke it many times and usually just a little CA and I was back in the air.
This may seem counter-intuitive, but I have also heard that the parkzone Corsair fly's very similarly to the Trojan, so that might be an option as well if you still want to try a corsair. I have not flown the Corsair, so I can't say first hand, but I have read on RCU that it is very similarly flying than the Trojan.
Also, no worries about the misunderstanding, it is sometimes hard to know if words are hostile when they are typed. I thought I may have sensed some hostility, so I figured I would call you out and explain myself, but since there was no hostility, no problems. I hope you have success with whatever plane you choose, and even if you keep this one. I would hate to have you leave the hobby for something like this. Good luck!