I'm using this particular tuning for my new 10-strings SS HAWAIIAN steel guitar. I keep the same string guages and retune between the two different tunings as the gig style requires. This steel is a perfect 24" scale and any other scale length would be subject to a guage or two up or down per tone.
For the 10-string:
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C6th D6/9 Guage
1) G down 1/2> F# .012p
2) E down whole> D .014p
3) C down 1/2> B .017p
4) A stay same> A .020p
5) G down 1/2> F# .026w
6) E stay same E .030w
7) C up whole> D .036w

Bb up whole> C .038w
9) A stay same> A .042w
10 F up 1/2> F# .054w
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As you can see the C6th tuning has the best of both worlds with the flat7th and sixth tone near the bottom. The D tuning has the 6th tone and 9th tone and flat7th tone in the tuning with the low 3rd and 5th tone at very bottom which is waaaaay cool.
I have experimented with different guages to fight between moving a tone up or down and what it does in it's playability; but I had no problem on this scale length with the guages above and it's my preference of feel anyways. One can use a gauge or two heavier on most of the strings but I wouldn't suggest any lighter.
Wow thanks guys, those compliments mean alot to Me and Archie Cox and David Parker.
Yes the engraving was done on the CNC machine. David Parker is a genious programmer and machinist and he can do it all.
We are working on a production of them and will be announced on the new website; "Mighty Fine Music".com; soon to come. There will be an explaination of all process and possibilities for a custom built SS HAWAIIAN for those who are wanting one.
My guitar is made out of Australian Silky Oak, that I got when I was down under last. It is very hard to come by. The beauty of this steel is the consumer can find or pick out what ever wood they want it made out of and cut it to size and send it to me and we go from there.
There is more info on this steel over on Bar Chatter where I also posted the pics(trying to convert some pedal players to our side

)
Ya'll are too kind and I am flattered.
Ricky
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Ricky Davis
http://hometown.aol.com/sshawaiian/RickyHomepage.html
http://users.interlinks.net/rebel/steel/steel.html
sshawaiian@aol.com