Been using Hugin for many years now. One thing though:
Enblend has an option -w, --wrap[=MODE] wrap around image boundary, where MODE is "none", "horizontal", "vertical", or "both"; default: none; without argument the option selects horizontal wrapping.
When using the Hugin GUI, does Hugin implicitly and silently add this flag if it detects that the user wants 360 * 180 output or do I have to add it manually? I never added it but still always got perfect parnoamas without any detectable border at +- 180 degrees horizontal.