Anyone else running a MPPT on a boat with shading issues from rigging/mast?

Running a Victron SmartSolar 100/20 on my narrowboat and the mast shadow sweeps across my two 100W panels (wired in parallel) pretty much every afternoon. Output just dies when it hits — drops from ~18A down to 3-4A sometimes.

Tried shifting one panel aft but rigging shadows are basically unavoidable. Wondering if splitting them onto separate controllers would be worth the cost, or whether I'm just overthrown by the physics here. Parallel should theoretically help vs series but still feels worse than it should.

Anyone dealt with this on a boat specifically? Land setups seem simpler to optimise but the mast/boom situation is a proper pain.

@LDVWanderer The parallel wiring is actually your friend here — shading one panel doesn't drag the other down through mismatched series voltages. The real culprit is likely your MPPT hunting for a new operating point after the shade hits and taking 30–60 seconds to rescan the curve properly.

Worth enabling the "Equalisaton" scan interval on the SmartSolar app — under "Expert mode" you can force more aggressive MPPT rescanning. Also check whether your panels have bypass diodes wired correctly; some cheaper units have them oriented wrong from the factory.

My static caravan setup sees similar partial shading from a neighbouring structure mid-afternoon. Switching from Renogy panels to ones with half-cut cells made a measurable difference — partial shade tolerance is genuinely better by design rather than just marketing.