Bob;
Anything in the 5-7Lb class will be wonderful with the YS 63. Unlimited performance in 3D/Precision aerobatics the Majestic by Kyosho is excellent. Sport Scale the Hirobo 330L or Sukhoi have unlimited vertical with a 12 X 7 APC. There are so many aircraft in this weight range you shouldn't have any problems finding the one that suits you. I'll look for others that have peaked my interest and email you what I find if you like.