I'm walking back to the 28" world with an extended Wilson Rok (http://tt.tennis-warehouse.com/showthread.php?p=7073508). I'm tinkering with the weight, balance and locations to add weight (3 and 9, 12 etc). With all extra weight in the handle, it weights 357g, balance at 33,5 cm. Maybe I'll add a couple of grams at 3 and 9 and "cap" it with head tape (will be around 363-4, I guess). If possible, I would also like to make it more HL, but I'll just try it "stock" first. My question is: how's your set up at >27,5"? What do you focus on when customizing such a frame?