I again am one who means my comments kindly and supportively. There is a mantra in the community, one that is drilled in:SSC -- Safe, Sane, and Consensual. Safe is sometimes not so clear when you're new ..l. that's where the research comes in. Sane also depends on reading and asking.
Is it safe to assume your Master is also fairly new to BDSM play? If so, whether he likes forums or not, perhaps you should do the research and provide reading for him. If not ..... I am concerned. I'm new to this, too, and as a Dom I haunt this site and several others to gain as much information as I can handle. My sub enjoys our play and enjoys tests of her endurance and devotion as much as I do .... what a shame if I were to injure her out of my own ignorance.
Best wishes. her_Joe