Let's take Tectus HM as an example, assuming I'm specialized for Living Bomb.
When there's just Tectus himself, I ignore LB, doing my regular rotation since the guide says Living Bomb is a dps lost on pure single target.
1. When shards of Tectus appear (just two of them, no motes yet), should I start using LB?
2. If yes, should I spread the bomb ASAP (i.e. hit the IB button the very moment I applied the dot to main target).
Or should I still continue my regular single target rotations maintaining the bomb on my current target?
3. When shard dies and motes appear, should I start spreading the bomb ASAP?
I mean, I used to play dot classes before and it was always beneficial to have high uptime for dots on all targets.
Or is the damage of dot component of Living Bomb just too insignificant compared to it's explosion part?
And therefore, I should continue my regular single target rotation making sure that LB is applied to my current target (duration doesn't matter, any time left is good enough) just before I use IB.
Sorry for my poor language skills and thanks for your answers!