what about a dead zone also in the upper zone?....hmmm I mean this
(https://s9.postimg.org/47baekkd7/core_2018_03_24_10_59_19_267.png) (https://postimg.org/image/47baekkd7/)
(https://s9.postimg.org/5z499g157/r_Factor2_2018_03_24_11_06_58_235.png) (https://postimg.org/image/5z499g157/)