smokin3000gt - Along my dive, Max depth at 18+m as my buddy who is OW. , those behind us were deeper than us. But when the current acting too strong (which was not commonly happened as what the local DM said), we were all about the same depth.
ScubaSteve - During the dive, I was buddy with my friend and look after him who is new in diving. Both of us are new to the dive site. That's why we were just sticking in front row after another diver who with the local DM. As I knew, the victim was not with any partner as the other 2 behind me were partners. We actually pointed out there's a lost member during the safety stop, but the DM said it's ok, ascend and wait. At the surface, we were told he was experienced at the dive site shouldn't be a problem, and everyone was just waiting. Before the dive, supposedly he was asked to buddy with the one who stick with the local DM. But when underwater, his partner changed to buddy with the local DM, and he was alone. *Not sure if he asked his buddy to do so. And, we were all leisure divers, buddy system was arranged by the local DM and he himself to choose who to be partnered with.
dumpsterDiver - you're right, and the current on the day was just abnormal else I believe it is one of the best spot in that area. Once we found his lost, the local DM asked all of us to surface first and on the boat, he and the boatman were actually keep looking for bubbles and some of us were helping too but see no sign of bubbles.
flots am - I guess he would safe if he never dive alone as he was confident with his experience and his logs at the repeated dive site. Else, as you said, either he alone or both he and his buddy will lost with the way they dive.
JamesK - No problem. I guess the wrong part, either my language or as what everyone said about the buddy system or his personalities.
DannyDon - The victim was not the Local DM, but DM worked in some island, cant recall the place name. He was return guest to the dive center.
Dr. Lecture - It's true that they are not always beneficial when the skills when both are in big gap. Anything happen on the experienced one, anytime will cause panic to the less experienced diver. And for the case I met, I believe it's either both survive or both killed if there's buddy with him.
peterbj7 - Me too actually unless I am diving with some closed friend, that's what makes me safe in the incident, maybe? I am photographer but i was not taking my camera down that trip, strange.
SangP - I believe he is.