After many years in EQ I finally got my first kronos. I have a couple of questions I've not been able to answer via search or friends... If i have, say, 4 months to run on a sub, can I use the krono now to make it a 5 month sub or will the krono just disappear? If I have no time left, can I use, say, 3 x krono to have 3 months playtime or, again, would 2 disappear? Does using krono in any way mess with a 'normal' (ie 1 year) sub - eg the rate charged?