Does anyone have any experience with the Big Blue AL1300NP light? It will be used mainly for rec diving along reefs or wrecks, and either a primary or back up for night dives. I have an OrcaTorch D550 (1000 lumens) which I like. I'm trying to decide whether to get another D550 or if it's worth the extra expense (~$50) for the Big Blue for slightly increased lumens (1300). I haven't had any problems with the D550 and have had heard good things about Big Blue, but trust SB more than online reviews.