Thank you all very much for your experiences, and ofcourse your experiences and comments are turning into information treasures on my mind, You all people are so good and nice in replying me back, Im also a JR Guy

I love it. Im using JR's XF421 EX, and in future I wanna buy JR's XP7202 7 channel with synthesized Rx. I really wanna thank RCKen, who always helped me with his advices.
Thank you all,
Have safe flying always
Mody