Compact and UPS-friendly 1x1 loaders. Works with train cargo wagons, circuits, filters, and modded belts from Bob's, Krastorio, FactorioExtended Plus, Space Exploration, and Ultimate Belts.
Loading a train makes one beltlane (usually left/southbound) go at normal speed while the other just stutters along.
Unloading is fine.
I'm also using Double Speed Belts from darkfrei.
