Im a Hunter with and i NEVER go invis because it confuses people to continue following the hunter. I've seen it happen ALL the time. If you have a group it's all about timing along with other stuff such as maturity. I've been with kids trying to lead and run around invisible which doesn't help at all. Worst of all he did it constantly while being told not to over and over. I'm very experienced in VOG and i've led groups of 6 all the time with EVERY class. It is entirely possible.