Hey Kooz, all that means, is that you never want to be capped at 2 charges of HoG but you don't really want to use the first charge before you have less than six seconds left until you gain the second charge. So you want to be able to cast the first charge, then throw off a couple of shadow bolts or a soul fire and a shadow bolt, and then immediately be able to use the next charge of HoG. RIGHT AFTER you use the second charge to refresh the shadowflame dot on your target(s), you want to immediately pop into Meta form, that way by the time the big meteor from HoG lands, it gives the refreshed HoG the buff from Meta form. The reason we don't do it every time, is that there is a 10 second cd between when we can enter Meta and enter it again. (You should have a macro for exiting Meta at any time, rather than waiting for that 10 seconds to pass before you can leave). Hopefully that made sense. The Meta buff to a double stacked shadowflame dot is a pretty significant boost in damage.
Anyway, here is the string I use for weakauras to track HoG charges and the time between charges:
Code:
dy0HkaWjrPQgfk1PqvELks1SaKBbu7cfr)Isk1WGOogGAzusjptuQY0uP4AQK6Bus14eLkDorPI3PsvMNks5Ekj7tLKoiLKfQI4HamrkXfvsTrrP8rrvJuLkNuuSsL4LOimtrLBQsIDIs8tuKgQkLwke5Pinvuvxvfj9vkPyUQiXEb9xvudw6Wiwmk4Xumzu5Yk2mq(mLA0QWPvQxlkz2u1THWUH63uz4Qelxvphstx46ISDusFhfvJhfLZJcTEvQQ9tgcmKpKIas5GuoiFiLzmfei0jGSao7GmKYitbbcDcilad81qA8BB75H8H0GXldKAsOHdbKAsOHdX5GXldKIgKiHcPMeA4qqdIjluifmyvkFRaWeQzyjBmvlGsytSDy280IQQQQ3ziEv6TRZL7CglQRubg5Rb263OcgSkDc1WPsVmEFglQoqQXtmznCQeg2(DWOwuvvv9odXRAoiV9Gci9)GdGunhK3EqVcHzaPAoiV9SMzx2)GcKQX58CoMJvxPMFc6LX7bCqE7bLn9215YDoJfEArvvv9Ni9yvZb5ThuaP)hCCpTmyoi1KqdhclPNeBhgsbdw1YPIKv8ZWuw0cOe2eBhMnpTOQQQ6DgIxLE76C5oNXI6kvGr(AGT(nQGbRsNqnCQ0lJ3NXIQdKA8etwdNkHHTFhmQfvvvvVZq8QMdYBpOas)p4aivZb5Th0RqygqQgoAq(aivdNL0tITdRUsn)e0lJ3d4G82dkB6TRZL7Cgl80IQQQkyWQzlHnX2HvdNQ5ymzPAs)p4qfNqWW8QoqQMdYBpOQHtn(TT98Arvvv17meVkG7ScP8RPQRubLWMy7WSzL45P(tKESkBwjE1RUsfzEQdMtvlQQQQENH4vJnIbq6)bhQRuZpb)nIHnV7Pfvvv1niv2goAq(qfSQHZs6jX2H5PEv1yJyaK(FWHkbZPc4oRqk)AkBZb5ThuaP)hCWtnogSkyWQzl59mQsyLS9eg8Jwuvvvvvvv)jspwfzGqwlQQQQJhD2GuzB4Ob5dvWQgolPNeBhMN6PTsn2igaP)hCOsWCQXgXai9)Gd1tBLkBdhniFOE6QgolPNeBhMNkbZPc4oRqk)AkBZb5ThuaP)hCWtnogSkyWQaCopNJ5yvIj2SoArvvvvvvv9Ni9yvdNL0tITddKQHJgKpoDdNL0tITdRfvvv1bZPfvvv1FI0JvrgiK1YG5GutcnCiGuWGv5JuM85xJKwaLWMy7WS5PfvvvvVZq8Q0BxNl35mwuxPcmYxdS1Vrfmyv6eQHtLEz8(mwuDGuJNyYA4ujmS97GrTOQQQ6DgIx1CqE7bfq6)bhaPAoiV9GEfcZas1WrdYhaPA4SKEsSDy1vQ5NGEz8EahK3EqztVDDUCNZyHNQQQQwuvvvbdwnBjSj2oSA4unhJjlvt6)bhQ4ecgMx1bs1CqE7bvnCQXVTTNxlQQQQENH4vbCNviLFnvDLkOe2eBhMnRepp1FI0JvzZkXRE1vQiZtDWCQArvvv17meVASrmas)p4qDLA(j4VrmS5DpTOQQQUbPc4oRqk)AkBZb5ThuaP)hCWtnogS6pr6XQXNg1bZPfvvv1FI0Jvbr8OJwgmhKAsOHdrgJddPArlqQ5ymzbPPlCKyGbKEmB7JaYYnxdPEhHdYhstOZz099hidqAcDoJhwNhYaKA8euuiFifDJT9dKAnwHuoMcGjGuejFSH8HuRXkKYXuamb8eyadinHoNXeed8ei9D(bYhsrK8XgYhgWasXeedKMlHGehouinHoNrVmg4jqAcDoBCiyGeWtGu0lJbYhsr3yB)azXAbPis(yd5dzj7bpbgWasr33FG8HuejFSH8H0yWWtG0lKpyeEcKgmFWbJG2SoWtGbmGbKcYHd6((dKfGVgs)XE7W8z8YaPBJddPgNZZ5yogEcKssHdYaKMWXVTTNhYhsnj0WHasbdw9uzHpszYNFnsAbucBITdZMNwuvvv9odXRsVDDUCNZyrDLkWiFnWw)gvWGvPtOgov6LX7Zyr1bsnEIjRHtLWW2Vdg1IQQQQ3ziEvZb5ThuaP)hCaKQ5G82d6vimdivdhniFaKQHZs6jX2HvxPMFc6LX7bCqE7bLn9215YDoJfEQQQQArvvvfmy1SLWMy7WQHt1CmMSunP)hCOItiyyEvhivZb5Thu1WPg)22EETOQQQ6DgIxfWDwHu(1u1vQGsytSDy2Ss88u)jspwLnReV6vxPImp1bZPQfvvvvVZq8QXgXai9)Gd1vQ5NG)gXWM390IQQQ6gKkG7ScP8RPSnhK3EqbK(FWbp14yWQ)ePhRcI4rh1bZPfvvv1FI0JvJpnAzWCWasjCC7y7We)54322ZJc5ddiL5BU4aYYnxdP4ec()22EEuiladPBoi9ocMt1bsnFYN95iyRnGdIdv1AiSoqk3g9INWygJddPzWX8GiM5uYyCy0tHWW2VdgpZCY7DMSoFqWCoq2jphbddiffsbMjVHjTotMDHuwHSa8niJmmGq
Just go into weakauras and click new => import new string (or something like that) and then copy and paste that in and click done, then a little window should pop up showing the weakaura you're importing and just click ok or whatever it is and you'll have it! It works really, really well for me.