stroke finger placement within tablature

[Rachael Thomas Carlson]

Hello:

I would like to place the stroke finger between the lines in tablature 
not on one of the lines as is currently the case.  Here is an example of 
what I do not want

\version "2.14.2"
\score {
   \new TabVoice {
     \set strokeFingerOrientations = #'(left)
     <c-\rightHandFinger #1 >8
   }
}
\layout {
   \context {
     \TabVoice \consists "New_fingering_engraver"
   }
}

Attached is something similar to what I am looking for.  The picture 
depicts a pinky finger plucking on the 1st string.  The 'c' is not 
written on the tab line but above it.  I cannot figure out how to gain 
control of the placement of these annotations.

Thank you for your help,
Rachael

Screenshot - 06102013 - 02:28:25 PM.png
Description: PNG image