sdk_config overwritten by sdk_old_config

hello nordic

i have been working with nrff52832 with the SDK16.0 (also working with s132 if it matters)

it is a real head braking to deal with your never ending sdk_config.h, today i found out that he has an even more evil origen which is the sdk_old_config.h 

why do we need 2 files defining the same things, seems like a very poor solution to whatever problem 

i wish to configure a timer by enabling NRFX_TIMER_ENABLE so i change it in the sdk_config.h but it does nothing, i have tried to disable every definition that seems related to legacy but still nothing changes 

please help it been to many hours of try and error with no real programing because of that

best regards and hope for better days