The project that never ends. Added my 6 new panels. In series feeding into my sol-ark-15k. I've been reading about optimizers and not really 100% sold on them. Is using dc-dc converters an alternative possibility? A dc-dc converter on each panel- boost the voltage from 48v to ~300V. Tie all the outputs from each panel in parallel and feed that to my inverter. I am essentially optimizing each panel. No one panel can throttle the other one down.