Happy New Year I am NOT Sheldon (or so we tend to think) I suppose you are about modifying the tuning on a SJ 5 (judging from your avatar) and I will continue my thought on this track. If it's a Z, AB or Prima you are looking to alter the tuning to E-C, then there is a problem with strings that can allow such a speaking length. I have not done that, but simply judging by the speaking lengths of my SJ5 and Prima Artist 6 (both in hand right now), I cannot see a problem with the intonation with the given SJ5 bridge. It's (more or less) like placing a (partial) capo on the first fret of the Prima Artist 6 and tuning accordingly. This assumes using a set for 35+" E string (some minor truss-rod and bridge adjustment will be needed, but nothing major IMHO) Sheldon and Moderator, please feel free to remove my post if it's wrong in any sense

Hi and happy new year to everybody. IMHO you will have a problem with the nut because your strings are thiner and maybe too small for the new position. For a perfect sound you will have to install a new nut. H.P.

Thanks all, but I'm planning on trying it on the Combustion I don't have yet. (that SJ5 in my avatar isn't mine actually, oops ). I thought after I posted the first time that finding suitable stings would be my biggest problem, but you say the bridge will suit just fine? That's good. And the nut, never thought about that. Thanks again.

One difficulty you may have is getting strings that are long enough. If you were to use a Dingwall 4 string set and add a C string, the 4 DW strings may not quite make it to the nut before the taper. I was interested in this idea once, but didn't pursue it too far. The extra long D'Addario's might do it, though.

We are talking about a 37" speaking length E. I am not very sure where one would fine such a string. Maybe Knuckle guitars???

Thanks for chiming in guys. All points are correct. Stringing a Combustion E2C will require some searching for strings and a new nut. Knuckle Guitarworks is your best bet for finding the strings. http://www.knuckleguitarworks.com/ Skip's a cool guy. If he doesn't have the strings you need he won't try and sell you something that won't work. The existing nut will work long enough to make sure you like the setup. Once you finalize your strings, you should replace the nut.

Has there been any thought of developing a 5string neck for the purpose of an E-C string configuration. That is leave the scale length of the E as it normally is and add the C below? I would love to have a Z3 made with this configuration instead of converting the B string on a 5'er to an E. . . . But I imagine there would be such a small consumer base to make it worthwhile.