Actually, I'm not using a program, except I have been demoing for the past couple of days. The tabledit looked good, but for some reason, some of the choices on a pallette disappeared, & some functions & had to keep reconfiguring--maybe it was just a wierd download malfunction. The $ibelius, terrific for most other purposes, seemed limited, also, in the tablature design & what could be done with it. And the big monie$ ver$ion gold couldn't playback using "alternative fretted instrument" (ie., mandolin, dulcimer) sound. These programs seem to not take "Bluegrass/Traditional" instruments seriously. I suppose it might seem strange that a college edjumacated classical-type moosician could possibly want to use one of the fancy programs for Bluegrassy-type instruments, too. In many orchestras on this planet, they would not be complete without a Mandolin or other instruments now seemingly forgotten. I'm not editorializing, just whining!   
   I also tried the free bucketo'tab and for some reason could never bring up anything that vaguely resembled a Music program-just a window with alotta nuthin'.
    Most of what I do tab-wise is for students & workshops, and includes a lot of Mountain Dulcimer, Autoharp, Mandolin stuff. & yes, Fiddle & Guitar--these 2 are very well developed in all the hoity-toity programs.
I know that with my arthritis & muscular problems I will eventually need some of the functions of the fancy programs to avoid all the writing by hand. I would actually consider getting one of the big kahuna$ if they had the standard Traditional instruments beloved by a large population of humans, also if they didn't keep saying this is extra & that is extra & $$$,$$$, $$$!!!!
I'll try the Randytab & go into the database & see what I can find--Thanks!