When planning solar in 2018 I wondered why Lance did such a poor engineering job running the solar the way they do (cheaper I suppose). Our panels go to a combiner box and a single #8 AWG cable drops from a Link solar penetrator through the wardrobe cabinet down to the passthru installed Victron controller. Trojan T105's used to live on the tongue, now LFP's reside under the bed. great performance and trouble free so far throughout the evolution.