OK the headscratching over string gauges continues.

my regular acoustic has a scale length of 645mm like a martin dread.....

I have a supply of D'Addario strings that I got bulk a while back for pennies, with the gauges:

13 / 17 / 26w / 35w / 45w / 56w

the tuning is standard E A D G B E........

now, the tenor has a scale of (lets average it) 550mm

tuned GDAE

so.......

the G string is just about right at 56 as the open G on the tenor is almost exactly the same as an E on a regular guitar fretted at the 3rd fret (a G!!)

the top E is 100 mm or so shorter than on a regular guitar, so it SHOULD go thicker.....at the minute I have the 13 on there, but I MIGHT just try the 17 ........

and in the middle?

well. I put the 45 on as the D. its 100mm shorter than it would be on a regular, but its tuned two semitones higher than the 3rd fret...... it'll do......

first attempt had the 17 on the A position but that meant it was loose.... regular guitar on a 3rd fret it'd be a C, but here its only an A..... it was loose, floppy and just not as nice as it should have been......

but with the 26 on there its a lot nicer on a regular guitar, that string would be playing at Ab on the 3rd fret so it's only a semitone away.......

so, all in all I THINK I'm sorted... at least I will be tomorrow when I swop the top E for the 17 just to see.....

I'll play it in for a day or two and then decide for certain, and sort the intonation and fit the pup