08-38 is pretty light. Unless it's in bad shape structurally I wouldn't worry too much. FWIW, I use Skinny Top Heavy Bottoms 10-52 with a 25.5" scale, but then I'm a ham fisted acoustic player and don't do bends. I think something like Super Slinky 09-42 or even something slightly heavier should be fine depending on your playing style.