A refit is a smart time to check batteries, connectors and cables.
A low-tech alternative to holding tanks and treatment, "composting" makes the best of a stinky situation.
A larger pump doesn't necessarily mean a better system, make sure you are set up to keep your boat afloat.
I was already inclined to try Firefly Oasis AGMs, and the switch from two conventional 8D AGMs to a four Firefly bank naturally led me to rethink Gizmo's battery storage, cabling, charging, and monitoring systems.
While Doppler effect is a seasoned and fairly well known concept, I suspect that its sudden and intriguing arrival to marine electronics is going to effect change.