hi, is this real ? i just finished reading the fire guide it says otherwise, refreshing it anywhere in between the 0 sec explosion to 3.5 secs remaining duration will give u the explosion AND also maintaining the uptime of living bomb, quoting directly from dutchmagoz's fire guide -In regard to your third paragraph, don't respread LB with IB until all of them have exploded, otherwise they'll get the duration added on, but they won't explode.
[With Living Bomb talented] http://www.wowhead.com/spell=44457/living-bomb Keep living bomb up on the target. you can refresh living bomb anywhere in the last 3.5 seconds without losing uptime or explosion damage. In higher ilvl gear (~685+) living bomb becomes a single target DPS loss to use, so simply don't use it all then. You should sim it for yourself to be a 100% sure, but 685 seems the breakeven point roughly to stop using LB on. (for single target)
Mod: I have just split this and the following posts into a new thread as OP was asking about tracking multiple Living Bombs
