Using .25 coils my settings are
6-9-11
0 Boost/1 Warmth
I primarily use the 9 watt setting. This imo is the best setting for flavor/battery life. Lasts all day. With an avg puff length of 2.5 sec. usually 3 puffs back to back with a few seconds in between each puff.
6 is super low and only used when i'm trying to get the most out of a near dead battery.