I did not read all the postings. But I am wondering about some post I saw here.
Why does everybody think about changing rigs in that way he would like to avoid a problem what maybe exist or not? Nobody is thinking about training the jumper to avoid canopy collisions or malfunktion by worse packjobs. It is always the manufacture, he should solve the problem or mistake the jumper did. Al the rigs on the market are ok. If you read the manual and listen to your instructors or ask for help by a rigger.
By the way, we had problems with poptop reservecontainers also in the past. Jumper pulled of the Pilotchute by exiting the aircraft.
And on the other hand you can tuck a line under a reserve flap, yes. But what is more possible? What is with the rest of your equipment, Helmet, arms, legs, alti etc there you can also tuck a line.