Disclaimer: These tips are for the blog author, pls seek professional instruction as this sport may be dangerous!
There is no absolute protection!
I learned that despite the fact that I wear padded shorts, there is no protection against hitting the hip point. All the padding happens to be below the waist line and I flew over the handlebar and acquired a spectacular bruise right where hip bone sticks out.
Interestingly, only few padded shorts manufacturers address this issue and I don't know how practical their solutions are in terms of not bothering the rider in the sitting position.
Therefore something to keep in mind: there is no absolute protection for everything.