I wear a bale out rig for work(flying skydivers). I have never actually done a solo skydive despite flying for a skydiving company. I did receive training in how to operate the parachute if I ever need it. There's not much involved really. Bale out canopies tend to have a big surface area and are quite slow by parachute standards. Pull the left toggle to go left, pull the right toggle to go right. Pull both toggles to flare. Feet together and bend the knees and always land into wind. Thats about as much as you need to know.
As Claudel said, the MB rig is round so it's directional capabilities are quite limited. You pretty much go where the wind takes you. These canopies are very slow in terms of forward and downward speed. Remember there is a high chance that any ejectee will be unconscious, and the type of parachute used must refect this.
Airman Jack, supplementary Oxygen is required by aircrew flying above 10k. AFAIK skydivers going to 15k and above must breath pure Oxygen before exit.
On an aside folks, haven't been on here in a while. Have been flying skydiving ops on the first GA8 Airvan to be operated in this country. 60 hours on it now. What a piece of kit. Tailor made Cessna replacement.