vertical slider mask help

[spinlud]

Hi, i am trying to get a working vertical slider on Reaper with knobman. My first attempt was this:



But the problem is the 0.00 db line that is too low. So i have tried to change the mask settings in knobman and i got this:



The 0.00 db line is upper but the problem here is that there is not slider range from about 3 db to 12 db.


Anyone could give me some help on how to set masks correctly?

ps: here i've also upload the stack images and the knobman presets: http://www.sendspace.com/filegroup/DABs ... dHx%2BDucJ

Thanks in advance!