wetnorm once bubbled...
No complaints here. Get both! My buddy/son prefers the smaller Surge. I carry the big one. Both are bright, adequate for seeing true colors at depth and for spotting critters in crevices before/or as they see you and hide. The big difference seems to be the battery life, beam width somewhat --but not an issue. Each buddy having one cuts down on sharing, dropping, outages, etc., and serves as safety for obvious reasons at nightime and/or during separation at sea.
...Hint: We secured lights to bottom end of BC with quick-lok and to upper BC SS clip via retractible holder and avoided getting hit in the head during the giant stride.