I've been fooling around w/ different strings and gauges for a while trying to come up with something I like. For the most part, I've settled on sets of 11s, tuned up a half step. I'm not fully settled, but that's where I'm at. I like extra tension in strings, and I like them on the thicker side (though not extreme). I also like having everything tuned up a half step (though down a half would work too) just cause it makes it easier to play w/ other instruments (mainly, my cello, which gets tuned oddly), in keys I use more regularly. The trouble I'm having is I'm trying to set up a LP for open G tuning (or, right now, open A flat) and I'm trying to figure out what string gauges I need to do this properly. Right now it's tuned to (low to high) Eb Ab Eb Ab C Eb w/ gauges of 56, 46, 28, 18, 14, and 13, with the intention of having it feel like 12s when tuned to open Ab. It aint workin' though. The top and bottom Eb, and the lower Ab (the gauges from a set of 13s) feel too loose. I also may drop a gauge (to shoot to feel like 11s) though I haven't fully made up my mind there. From what I've been told, tuning up a half step will make a string 'feel' like one gauge higher. I'm not sure I find this to be true. The strings feel plenty thick, but still loose. Should I maybe be taking a yet fatter string for the bottom two, and top string? That would mean starting w/ 14s, which sounds awfully thick... Fwiw, I haven't worked out if it's possibly the brand strings themselves. These are Ernie Balls, and they're the only ones I've tried with this setup. This is the only set of Ernies that I've tried, so perhaps I just don't like their strings. Anyhoo, if anyone could shed some light on what I'm trying to do, it would be appreciated. This is my favorite guitar (or, at least, arguably so (a Gibson 50's Tribute)), and I'm really trying to get it set up right, as I'm at the point where every little tweak makes a great thing feel greater. Eventually I'd also like to set up a guitar for open D (or, Db) tuning as well, and I'll have the same issues, except more extreme.