Endurance has 3d subbottom profiling on its AUV system, its not new, SFRX did not invent it despite their claims. They built a shallow water ROV and added third party sensors to it. However, what is unique about SFRXs Seasucker 2.0 is the silly design of pulling around a surface buoy. By choice, EXPL doesn't stream data back to the "command center via a towed surface buoy", because, a surface buoy would become very impractical/impossible to tow around in any type of water depth beyond 100 ft or so, meaning the Seasucker 2.0 system is very limited to shallow water use, and, subsequently, limited to search areas that represent a very small area of the worlds oceans and that are very near the coast and subject to hugely restrictive regulations such as state of florida or other jurisdictions. EXPL's business model, and perhaps the only viable and workable business model left in this industry, is to salavage merchant ships, with merchant cargoes, located in international waters (offshore and deep), and this is the reason EXPL has been granted ownership rights by the US Federal court system for every single wreck its sought rights on. Conversely, shareholders of SFRX conveniently gloss over the elephant in the room, that is, SFRX has no salvage rights, no ownership rights to any wrecks it finds (the fact that they are incompetent in actually finding a wreck is another story completely) in a State's territorial waters, and, is extremely unlikely to ever be granted ownership rights under their model, nor will they withstand Spain's well precedented litigation machine in taking back any of its property that SFRX happens to find. KK is on the record saying his business is salvaging Spanish Galleons - lawyer Goold and his client, Spain, are waiting-- good luck!