Yamaha DTXpress/DTXplorer/DTXtreme

Hi, this is my first post.

I just got a used DTXpress III Special Edition and I'm having trouble
getting the RHH130 to work the way I want it to work.  It seems to
produce the footsplash sound far too easily (it will usually occur
when I simply want to close the hihat. there is a close movement but
no open movement so i don't understand why it would register a
footsplash).  It also seems like it's too easy to get the foot pedal
sound as well.  I'm experimenting with trying to get a more realistic
hihat sound by varying the open/close-ness of the pedal while playing
but I'm getting the foot pedal sound a lot when I try to go from open
to close gradually.  I've tried multiple clutch ranges and I've tried
changing all the module settings (offset, footsplash detect time, etc)
but haven't been able to get a good setup.

Has anyone been able to setup the RHH130 to work consistently? 
Can anyone share their module/hihat stand settings?

Thanks, 
Tom