#1
I play an 8 string, 26.5 scale in drop G, so yes it's tuned up a bit (1/2 step on low G and 1 1/2 on the rest). G-D-G-C-F-Bb-D-G

Right now I have 72-56-46-36-24w-15-11-8

I like it but then I don't, it's really tight and sounds good, but it's forced me to raise my action quite a bit and it's slightly difficult to play. What would YOU use?
#2
Im not accustomed to 8 strings, but is 8-72 (1 extra high 1 extra low) really change that much in regards to your neck and bridge? Wouldn't you beable to set it up similar to a 11-56 6 string D standard tuning and the gauge etc. would just bring the tuning?

Talking from a bass player point of view i did GCGCFC tuning and all i did was use a heavier gauge and got a custom G string but I didn't have to change the action etc. at all to compensate.

Main point. The strings look like ther gauged fine, I have 4 guitars(6 strings) set up in D standard and there all similar to that gauging. I'd personally look at fixing the action/bridge etc.
#3
i would not attempt the high G unless i had a fanned neck,

Trust me, ive already tried >_>

also the thinner the string the weaker. so youd actually be better off with a 9/10 in that situation.
People in the pit take my post way too seriously.

MyAnimeList
7-String Legion

If you have a question PM me and I will always get back to you.
#4
Yea see I thought they'd be ideal too but once I got em on there it forced me to crank the action to nightmarish levels. If I just trem picked and palm muted everything it would be find, but then what's the point of an 8 string? More articulate stuff is very difficult, diminished stuff is 3x as hard as I'm used to and it's not the neck.
#5
the highest 4 string are perfect 8-24w, it's more the lower 4 I'm concerned with
#6
as in the low strings raising your action?
If anything it would be your high string raising the action... the low strings being wound would stretch alot easier
#7
it's got a hip shot bridge, basically a modified strat style. so I can adjust action for each individual string. the highest for are perfect right now, super low action and perfect tension on those. It's the low 4 that are giving me problems.

I just restrung the d g and c strings to 52, 42, 32 respectively. lowered the action on those a bit from where they were with the higher gauges and that seems to help, a little buzz but doesn't come through the amp at all. lowered the 72 as low as I possibly could and it's tolerable now. now the problem is the big gauge gap between 72 and 52. I've tried a 64 and 66 in the past and was a little too floppy. Maybe I'll pick up a 68 and 70 and see how those work.
#8
I've gotten a high A with a D'Addario .007 at 27" on my RG2228. Granted, the bridge and nut helped out a lot with no places to add extra tension. I've had a high G with a .008 though, I could bend it half a step but didn't dare go higher. A .007 would have been perfect, if I had one on hand at the time.

It depends on how tight you want your strings. Try this tension calculator. I like rather light strings and for drop E I use:

.008p | .011p | .014p | .019p
.030w | .040w | .054w | .080w

For a low F# I drop down to .074. Looking at the gauges you use... I can only think 'holy shit, that tension is insane'. Here's what I'd use in that tuning at that scale length to maintain a similar tension:

G .007" PL == 12.13#
D .0095" PL == 12.54#
B,b .012" Pl == 12.61#
F, .016" pl == 12.58#
C, .026" nw == 15.78#
G,, .034" nw == 15.09#
D,, .046" nw == 14.99#
G,,, .070" nw == 15.6#

The top four strings are plain steel. That's what I would honestly go for in your position. If you want tighter... copy and paste that into the calculator, remember to adjust the scale length, and build a set to your liking.
Ibanez RG2228 w/ EMG808Xs | Line 6 POD HD500 | Mackie HD1221