I put in my 2 ceants worth in original thread.But,a bit to be added.I am a 25 year firefighter verteran.When I have a rookie with me inside,I moniter their air ,they get excited,use more air than me,I know the time in,when it time to go.I know their experience/training and dont and won't push them beyond the safe limit,they dont let go of me,They stay with me,period.I show them cool stuf,,flashovers and backdraft potential,how to get in and out properly,Now,that said..I'm new and a rookie at diving.I want the pro to make sure I;m doing right,not take me beyond my training,show me cool things,ask me if I'm ok along the way,dont smother me,let me learn,,but dont let me get stupid and get hurt,stay with me,if thats the plan.I;ll do 10-20 dives in quarrys,local lakes with an experienced friend before I tackle the the ocean and DMs and such,,just for my learning and comfort level with equipment and learning my equipemnt,to me,a more realxed way to learn much before I "DIVE" right in.I do alot of pool dives,for me to get used to MY equipment,to practice bouyancy,mask removal,don,doff BC,,also practiced with firefigting in case entangled with wires.I think that time underwater has helped me alot.Proper weighting.ect...Then I may know what to expect from a DM and be able to function ablely when I are one...I am going to watch this thread,very interesting and informative..Much for me to learn,,come on warmer weather,,no dry suite yet,,but in my future.I also beleive asking and getting as many people to answer specifics questions gives a more precise answer,,more than one side to a story/answers.So,any one that is willing to let me ask one specific questions,please Pm me,I dont want to bother anyone ,but would appreciate the time anyone would take for me to help and share their opinions or advice..thank you in advance..Did I run on?