Heya and thanks for have answer ^.^
@clamnectar, i agree that is subjectif and i kinda can do whatever i would like to. But i try to make a setup who wouldnt chock to much people who are not used of none ordinary positions.
@Samplin, i agree about the description for the diferent pics and for the timpani case.
At start i wanted make the same one as the 1st pic but after listen diferent music it wasn't what i wanted, or like i said i having my monitoring not making sound like it should. I have think about make a setup but i wasn't sure if it can work well. Here the setup i have think :
Gong/Cymbal/Triangle BassDrum Timpani Tubular Bell Snare Vibra/Xylophone/glockenspiel
French Horns Trombones Trumpets Tuba
Piano Clarinets Bass Clarinet Bassoons Contra Bassoon
Harp Flutes Oboes Piccolo English Horn
Violas Cellos/Basses
1st Violins I 2nd Violins
I have think about that position but i am not sure the balance will be that good. From diferent music i have listen most of time i found the trumpet was sounding a lot on right side.
Feel free to say me what you thinking about it nd thanks a lot for the help ^.^