I was about to upload the same chart but was pre-empted by your post!
I use Augustine Imperial Blue on my Sakurai No 5 (660mm scale length) for about a week now. At first, it was stiff and more difficult to play with extra effort on my left fingers. As they become more ... callous now, and the strings seems to stretch and settle, I love the bright, crispy trebles and warm/brighter basses.
I think the longer scale would effectively makes the string tensions even higher, qualitatively; not sure quantitatively. So the Imperial Blue, med/hi trebles would be closer to harder tension, the same can be interpreted for the basses. Thus I would not try to "optimize" any further with Regal treble strings.
When I restrung my bro's RA R4, D'Addario Hard Tension strings were used, and I like the sound of this R4 with traditional sound. He promised to give me his guitar some time ago (he re-strung individually when one snapped, and they are old), now he changed his mind
As discussed in other related posts, there are other factors such as action, how you play -with finger nail length, shape, and techniques e.g. rest stroke, it is not easy to have a common set of "rules" to optimize your guitar sound, string tensions alone is just one factor.
Jacek A. Rochacki wrote: ↑
Sat Jan 06, 2018 2:21 pm
a guide to Augustine strings:
With Augustine strings the colour defines the bass strings:
- Black = low tension basses
- Red = med tension basses
- Blue = high tension basses.
The above basses are paired with one of the following treble string sets:
- Classic = low/med tension
- Imperial = med/high tension
- Regal = high tension.
Thus if you buy 'Regal Blues', you will get high tension trebles with high tension basses.
If you buy 'Classic Reds', you will get low/med tension trebles with medium tension basses.
First, choose you bass tension - low, medium or high (black, red, blue).
Then choose your treble tension - medium, high, extra high (Classic, Imperial, Regal).
Put those two words together and you had your chosen set.
And here we have a chart with data on Augustine tension