Of course, it's just a bad feeling when I play, I put my thumb on this part of the frame when I'm in position "not jumping"
Give me a "cheap feeling"
Not easy for me to explain exactly in english lol Dont have the words

But you 're right, I think I"ve to deal with it, it's like that

And I cant return it, the shippment costs for China and USA are very too expensive ...
I already fix the moving frame I cant do anything for the other frame problem ...
Thanks and all have a nice evening (sorry for my english!)