Planning a complex survey mission over mountainous terrain and debating between Litchi and UgCS for terrain following accuracy. Have 130m elevation changes with mixed tree coverage.

Litchi claims 99 waypoints with programmable gimbal tilts, but I'm seeing conflicting reports about AGL maintenance accuracy in steep terrain. UgCS boasts "industry-leading terrain following" with DTM pre-import support.

Has anyone compared these two for precision surveying work? Particularly interested in actual AGL error rates and overlap consistency on slopes >30 degrees.

Used both extensively for forestry mapping. UgCS crushes Litchi for terrain following - consistently holds <2m AGL error even on steep sections. Litchi's great for creative shots but struggles with complex elevation profiles.

Just completed a 9km powerline corridor survey with UgCS last month. The DTM import feature is game-changing for linear assets. Litchi couldn't handle the multi-flight segmentation we needed for battery swaps.

Honestly questioning if the extra cost of UgCS is worth it for smaller operations. Litchi at $25 one-time vs UgCS licensing... What's the actual ROI difference for typical surveying jobs?